What is the best open source PBX software for a small business?

Best open source pbx : r/VOIP

Best Open Source PBX Software 2026

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
...
Asterisk is best for small businesses and SMBs that need a custom VoIP phone system with ...

The Best Free and Open-Source PBX Software

Best Open Source PBX Software Guide (2026)

You're a single business with under 100 extensions, on-premise or self-hosted, and you don't plan to resell voice service.
**Pick Asterisk plus FreePBX.** The community is huge, the deployment is well-trodden, and the feature set is more than enough for an internal phone system.
...
There isn't a si...

Open Source PBX Software in 2026: A Practical Buyer's Guide

The decision tree for selecting an open source VoIP platform is relatively straightforward.
If you are a small to medium business that needs a phone system with a web interface and strong community support, start with FreePBX.
...
FreePBX is the best starting point for most organizations, FusionPBX ...

Best Open Source VoIP and PBX Software

|Provider|Best For|Key Features|Pricing|Unique Differentiator|
...
It depends on your budget and requirements, but if you want access to advanced features at competitive rates, then CallHippo is your best choice.

Top 10 Free Open Source PBX Software Solutions for ...

6 Best Open-Source PBX Solutions | Global Call Forwarding

|Brand Name|Key Features|Pricing|Free Trial|
...
If you are looking for an affordable solution for all businesses, DialerHQ is the best, as even the free version offers several advanced features.

Best 11 Free PBX Software in 2024

- **Best For:** Small startups (under 10 users) who need a system that “just works” and can be set up in minutes.
...
### What is the “best” free PBX for a small business?
For very small teams (under 10 users) who need a quick setup, **3CX** offers an excellent limited free tier.
For businesses that...

5 Best Free PBX Systems: The Pros, Cons, and Hidden Costs - hapbx

FreePBX | Open source, web-based, IP PBX management tool.

10 Open Source Call Center Software Options & Better Alternatives

### 1. 3CX: Best Overall for Small to Mid-Sized Businesses

The 5 Best PBX Systems for Your Business in 2026

Top 10 Free PBX Open Source Software in 2026

Seeking Advice: Best Secure and Open-Source PBX for Small Business?

Best Small Business PBX Software of 2026 - Reviews & Comparison

Compare the Top 10 Best Open Source PBX Software of 2025 | voipreview.org

MikoPBX

Home ⋆ Asterisk

What are the best Business VOIP providers/cloud PBX providers?


Best open-source self-hosted phone system for a 50-person company

Self hosted voip / phone system : r/selfhosted

Open Source VoIP for Business

FreePBX, developed by Sangoma, is the most popular open-source IP PBX platform available.

Best open source pbx

Cloud Call Center Software: Best Open Source Options for ...

Top Free and Open-Source Call Center Software

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
- Best for large businesses and enterprises: SIP Foundry
- Best for SMBs: Asterisk
- Best for startups and small businesses: OpenPBX, Kamailio, or OpenSIPS
- Best for small remote teams: 3CX
- Best for those in the education/government sec...

The Best Free and Open-Source PBX Software

After evaluating 10 telecommunications connectivity, 3CX Phone System stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.

Vonage Voice Api

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

### Best open source PBX phone system for small business
...
For anyone who wants to build their own PBX system and save lots of money in the process, it’s worth checking out Asterisk.
The latter is an open-source framework that allows people with the right technical know-how to build their own comm...

Best open source

Self-hosted PBX Phone System for Business

There isn't a single "best" because the right pick depends on whether you're a single business, a software team building a custom voice product, or a service provider hosting voice for multiple customers.
Asterisk plus FreePBX wins for single-business deployments.
FreeSWITCH wins for custom builds.
...

Open Source PBX Software in 2026: A Practical Buyer's Guide

VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, feature set, active development, and community size.

Open Source Call Center Software: 5 Platforms Compared

Top 10 Open source PBX Software. - SyncBricks

Best Open Source PBX Software Guide (2026)

20 Best VoIP phone systems and integrations

10 Open Source Call Center Software Options & Better Alternatives


We are a 30 person startup looking to host our own VoIP PBX server on-premises. What open source software should we use?

That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

FreePBX | Open source, web-based, IP PBX management tool.

## PBX platforms
Some of these include SIP proxy functionality
- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Lin...

Open Source VOIP Software & Servers - VoIP-Info.org

Best open source pbx : r/VOIP

Best Open Source VoIP Software 2026 - SourceForge

The open source VoIP ecosystem includes free software for every layer of a telephony stack: PBX systems like Asterisk and FreeSWITCH for call processing, management interfaces like FreePBX and FusionPBX for web-based administration, SIP proxies like Kamailio for large-scale routing, softphone client...

Free Open Source VoIP Software

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
If you are a small to medi...

Best Open Source VoIP and PBX Software

Asterisk an open-source framework for building communications applications.
It runs on Linux, BSD and OS X and allows you to build a PBX given sufficient Linux and telephony know-how.
...
OpenPBX a full function, web enabled PBX application, suitable for small office installations and can scale to l...

Open Source VOIP Applications, Both Clients and Servers - Veloce

Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

Home ⋆ Asterisk

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferencing - IM/C...

Asterisk is an open-source communications framework for creating custom VoIP PBX systems.

Best Voip Pbx Software: 2026 Comparison - Gitnux

1. 1#1: 3CX - Feature-rich open standards IP PBX software for Windows, Linux, and Mac with integrated video conferencing and mobile apps.
2. 2#2: Asterisk - Open source software framework for building scalable VoIP telephony applications and PBX systems.
3. 3#3: FreePBX - Web-based graphical user in...

Top 10 Best Voip Telephone Software of 2026 - Gitnux

Asterisk is an open source framework for building communications applications.
Asterisk turns an ordinary computer into a communications server.
Asterisk powers IP PBX systems, VoIP gateways, conference servers and other custom solutions.
...
Asterisk is free and open source.
...
Asterisk is an open...

Asterisk PBX - Open Source VOIP IP-PBX Server

Asterisk is a free and open-source VoIP software sponsored by Digium.

Best Free Open Source VoIP Software

**FreeSWITCH** is a free and open-source telephony software for real-time communication protocols using audio, video, text and other forms of media.
...
FreeSWITCH is used to build private branch exchange (PBX), IVR services, videoconferencing with chat and screen sharing, wholesale least-cost routi...

FreeSWITCH - Wikipedia

**OpenPBX:**Developed by Australian company Voicetronix, OpenPBX is a popular solution both with small offices and with large call centers.
...
**GNU Bayonne:**An integral part of GNU telephony, Bayonne offers users technology that is not only free but scalable and customizable as well.

Top 50 Open Source VoIP Apps

MikoPBX

The software PBX code is free to download, but the system is not free to operate.
You still need to pay for the server hardware (or cloud VPS hosting), SIP trunking services for outside calls, and the electricity to run it.
The biggest hidden cost is the IT labor required for maintenance.

This category is for packages that implement VOIP and are free software - that is to say that the source code is available under a free software licence.
...
- Asterisk (PBX)
...
- Blink (SIP client)
...
### E
- Ekiga
- Elastix
- Empathy (software)
### F
- FreePBX
- FreeSWITCH
### G
- Galene (softwa...

Category:Free VoIP software - Wikipedia

Seeking Advice: Best Secure and Open-Source PBX for Small Business?

Open Source VoIP PBX Hardware


Recommend an open source IP-PBX platform for an enterprise with 200 employees.

Best open source pbx : r/VOIP - Reddit

The 5 Best PBX Systems for Your Business in 2026 - SIP.US

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
Here are some suggestions for organizations of various sizes and industries:
- Best for large businesses and enterprises: SIP Foundry
- Best for SMBs: Asterisk

The Best Free and Open-Source PBX Software - GetVoIP

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

If you are a small to medium business that needs a phone system with a web interface and strong community support, start with FreePBX.
If you are a service provider, MSP, or enterprise that needs to host multiple organizations on shared infrastructure, choose FusionPBX.
If you are a developer buildi...

Best Open Source VoIP and PBX Software

Best Open Source Linux PBX Software 2026

- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols

Best Open Source PBX Software 2026

SIP SERVERS

Best Free Open Source VoIP Software

Top 50 Open Source VoIP Apps

For a single-business deployment, FreePBX on Asterisk is the most widely documented and supported.

Open Source PBX Software: The Complete 2026 Guide for Service ...

|#|Tool|Category|Overall|Features|Ease of Use|Value|
...
The review of top VoIP telephone software highlights 3CX as the standout choice, with its feature-rich open standards, integrated video conferencing, and cross-platform compatibility.

VitalPBX - Advanced PBX System

Best Mid-sized Companies IP PBX Systems 2026 | TrustRadius

Top 10 Best Voip Pbx Software of 2026


affordable self hosted open source PBX software

Self-host your own PBX system for free for up to 10 users with the Startup version.
...
TeamSpeak 3 Client is absolutely FREE to download and install on your PC, Mac or Linux Box.
Once installed, you can freely access 1000s of public TeamSpeak servers or even your own private TeamSpeak server.
If yo...

Voice over IP (VoIP)

The modern trend is to deploy virtual PBX open source solutions.
Instead of buying hardware, you rent a VPS (Virtual Private Server) from providers like AWS, Google Cloud, or DigitalOcean.
...
The software PBX code is free to download, but the system is not free to operate.
You still need to pay for...

FreePBX is a nice and open source software suite built on top of Asterisk with a GUI.
...
Ooma is one of the cheapest options, they’re at $20/line.

Self hosted voip / phone system

That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.
Completely free to download and use, the power of FreePBX comes from a global community of developers who ensure it remains a high compatibility and customizabl...

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

|Provider|Key features|Pricing|Pros|Cons|
...
|1.
VICIdial|Predictive dialer, ACD, IVR, call recording, CRM integration, web-based agent interface.|Free (open-source) or $400/month (hosted)|Powerful for high-volume outbound campaigns with predictive dialing and reporting.|Interface can feel dated; r...

Discover the Best Open Source Call Center Software ...

Supported by Digium, the software program is totally free as well as open source.
...
Initially based off the Asterisk platform, Elastix provides open source single communications server program which includes an IP PBX, IM, email, faxing as well as collaboration functionality.
With a solid focus on...

7 Free Open Source PBX Software Solutions - VOIP Solutions

The free and open-source PBX software solutions reviewed below keep costs down without compromising capabilities.
...
The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small comp...

MikoPBX

Best open source pbx

Open source call center software is free to use, customizable to the nth degree, and backed by a community of developers.

10 Open Source Call Center Software Options & Better Alternatives

Starts at €0 per license
Free trial available

Best Self-Hosted PBX Software • November 2025

Home ⋆ Asterisk

Choose 3CX Hosted for managed hosting with full data control, or self-host on Amazon, Google, Azure, or on-prem with Windows or Linux.
...
3CX is one of the few PBX solutions offering full on-premise deployment, with options for self-hosting in the cloud or installing on-site.
...
3CX offers flexibl...

PBX System for Enterprises | Self-host or On-premise - 3CX

6 Best Open-Source PBX Solutions | Global Call Forwarding

The core Asterisk software is entirely free to download, install, and configure without any licensing costs.
...
Paid support subscriptions are available through Digium starting at $99 per year for the basic plan.
...
As open-source software, FreeSWITCH is entirely free to download and use without a...

Best Free Open-Source PBX Software for 2023

Best Open Source VoIP Software 2026 - SourceForge

|**Provider**|**How Free**|**User limit**|**Standout Features**|**Best For**|
...
|Freshdesk|Free forever plan|Up to 2 agents|- Ticketing System - Customizable reporting templates - Shared inbox|Businesses in the healthcare industry that need high security, reliability, and scalability|
|Bitrix24|Fr...

7 Best Free Cloud PBX Providers - GetVoIP

Self-hosted PBX Phone System for Business - Yeastar


What open source PBX software do IT administrators actually recommend?

**Best For:** SMBs and IT admins who want the power of Asterisk without the complexity of the command line.

Best Open Source PBX Software Guide (2026)

FreePBX | Open source, web-based, IP PBX management tool.

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
If you are a small to medi...

Best Open Source VoIP and PBX Software

**Quick answer:** The 10 strongest open source unified communications platforms in 2026 are FreeSWITCH, Asterisk, ICTCore, ICTDialer, Kamailio, OpenSIPS, FusionPBX, Jitsi, Matrix (Element), and BigBlueButton.
...
|If you need…|Start with|
|--|--|
|Programmable telephony engine|FreeSWITCH|
|Simple in...

10 Best Open Source Unified Communications Software in ...

The pattern is obvious: if you need outbound contact center functionality --- predictive dialing, campaign management, lead list handling, agent scripting, blended inbound/outbound --- VICIdial is your only real option in the open source world.
...
### What is the best open source call center softwa...

Open Source Call Center Software: 5 Platforms Compared

Best open source pbx : r/VOIP

Best Open Source PBX Software 2026

Some of these include SIP proxy functionality
- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Linux: ISDN PBX with...

Open Source VOIP Software & Servers - VoIP-Info.org

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferencing - IM/C...

The Best Free and Open-Source PBX Software

|Provider|Best For|Key Features|Pricing|Unique Differentiator|
...
It depends on your budget and requirements, but if you want access to advanced features at competitive rates, then CallHippo is your best choice.

Top 10 Free Open Source PBX Software Solutions for ...

**Pick Asterisk plus FreePBX.** The community is huge, the deployment is well-trodden, and the feature set is more than enough for an internal phone system.
...
### What's the best open source PBX software in 2026?
There isn't a single "best" because the right pick depends on whether you're a single...

Open Source PBX Software in 2026: A Practical Buyer's Guide

SIP SERVERS

Home ⋆ Asterisk

After evaluating 10 technology digital media, Dialpad stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.

Best Voip Pbx Software: 2026 Comparison - Gitnux

Seeking Advice: Best Secure and Open-Source PBX for Small Business?

Top 10 Free PBX Open Source Software in 2026

**Comparison of Top 11 Free Open Source PBX Software in 2024**
|Brand Name|Key Features|Pricing|Free Trial|

Best 11 Free PBX Software in 2024


Best open source self-hosted VoIP server for Linux

What's a good FOSS X-platform self-hosted VOIP program?

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

ejabberd

News

- **Choose Kamailio** if you only need SIP signaling — routing, load balancing, or a SIP front-end.
Pair it with a media server for full PBX functionality.
...
- **Choose FreeSWITCH** if you need modern features like WebRTC, advanced conferencing, or are building a communications platform that needs...

Kamailio vs Asterisk vs FreeSWITCH: Best Self-Hosted VoIP/PBX ...

Open source SIP server / client recommendations?

The Best Free and Open-Source PBX Software - GetVoIP

Self-hosted / SIP - AwesomeHub

List of Top Free Open Source & Self Hosted Application for ...

Voice over IP (VoIP)

Best Open Source PBX Software 2026

Home ⋆ Asterisk

Open Source VOIP server

Best Open Source SIP Servers 2026

Recommend an open source VoIP project?

FreePBX | Open source, web-based, IP PBX management tool.

VOCAL: Open Source VoIP Software for Linux

22 Open-source Free and Open-source VoIP and Sip Servers


What is the most reliable open source PBX software for a call center?

**VICIdial** --- The dominant open source contact center platform.
Full predictive dialing, inbound ACD, blended campaigns, call recording, real-time monitoring, agent scripting, and a non-agent API.
...
The pattern is obvious: if you need outbound contact center functionality --- predictive dialing...

Open Source Call Center Software: 5 Platforms Compared

Best open source pbx : r/VOIP - Reddit

**Quick answer:** For a complete outbound/blended call center platform, VICIdial is the leading open-source option.
...
- **VICIdial** — Original, most deployed, active community.
Predictive/progressive/preview, blended, IVR, recording.
...
What is the best open source call center software?
VICIdial...

Open Source Call Center Software in 2026 - Hosted - VICIdial

Any suggestion for a free open source call center software for our startup? Could VICIDial be good for that? Anyone experienced with it?

- **Top options in 2025** include *VICIdial, Asterisk, FreePBX, 3CX*, and *GOautodial*, each offering varying levels of complexity, UI friendliness, and feature sets.
...
## Best Open Source Call Center Software in 2025
|Provider|Key features|Pricing|Pros|Cons|
...
|1.
VICIdial|Predictive dialer, AC...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

10 Open Source Call Center Software Options & Better Alternatives

Based on current development activity and community support, here are the best open-source call center platforms:
...
Built on the reliable Asterisk platform with omnichannel blending capabilities, VICIdial remains a standout with its unmatched customizability.

Top 8 Open Source Call Center Software Options In 2026

|#|Tool|Category|Overall|Features|Ease of Use|Value|
...
The top free call center software reviewed offer tailored solutions to diverse needs, with VICIdial leading as the standout due to its comprehensive inbound, outbound, and blended calling features, along with agent monitoring, IVR, and CRM int...

Top 10 Best Free Call Center Software of 2026

| |Tool|Category| | | | | |
...
|1|FreePBXBest Overall FreePBX provides a free open-source PBX platform with web-based call routing, extensions, and call flow management for call centers.|open-source PBX|9.1/10|8.8/10|7.4/10|9.6/10|Visit|
...
FreePBX
Best Overall
9.1/10
...
8
...
FreePBX ranks first...

Top 10 Best Call Center Free Software of 2026 - WifiTalents

The “Free” in FreePBX stands for Freedom.
That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

10 Open Source Call Center Software for Businesses

callcenter software

Best Open Source PBX Software 2026 - SourceForge

### Is open source call center software reliable enough for production use?
Yes, when it’s built on proven telephony engines like FreeSWITCH or Asterisk.
ICTBroadcast runs FreeSWITCH, which handles millions of concurrent calls in production deployments globally.
The open source label refers to the l...

Cloud Call Center Software: Best Open Source Options for 2026

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
Here are some suggestions for organizations of various sizes and industries:
- Best for large businesses and enterprises: SIP Foundry
- Best for SMBs: Asterisk
- Best for startups and small businesses...

Home ⋆ Asterisk

Best 15 Open Source Call Center Software to Consider

Top Free and Open-Source Call Center Software - GetVoIP

VitalPBX - Advanced PBX System


We need to deploy a self-hosted IP PBX on a cloud server. What open source software is best?

Best open source pbx : r/VOIP

## PBX platforms
Some of these include SIP proxy functionality
- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Lin...

Open Source VOIP Software & Servers - VoIP-Info.org

1. Best overall
3CX Phone System
Fits when mid-size teams need routing control plus measurable call-handling reporting.

Top 10 Best Ip Pbx Software | Independently Tested 2026

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
|--|--|--|--|
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferenc...

The Best Free and Open-Source PBX Software

## Best Open Source Software based PBX Systems
...
Essentially it is an open source PBX system.
...
That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

Top 10 Open source PBX Software. - SyncBricks

The software PBX code is free to download, but the system is not free to operate.
You still need to pay for the server hardware (or cloud VPS hosting), SIP trunking services for outside calls, and the electricity to run it.
The biggest hidden cost is the IT labor required for maintenance.
...
A virt...

Best Open Source PBX Software Guide (2026)

Kamailio is an open source SIP Signaling Server designed for large deployments, but can also be used for personal needs.
...
MikoPBX is a powerful and flexible open-source graphical user interface (GUI) designed to control and manage Asterisk (PBX) with ease.
...
Mumble is an open-source VoIP applic...

22 Open-source Free and Open-source VoIP and Sip Servers

3. **Open Source Software PBX**– Open Source PBX developed using Perl.
OpenPBX.org will be stable, featureful, easy to use, and easy to deploy on a range of operating systems.
...
5. **SIPxchange**– An enterprise-grade SIP PBX, SIP call manager and router, and SIP Softphone based on 100% SIP and 100...

74 Open Source VoIP Apps & Resources

List of Top Free Open Source & Self Hosted Application for ...

Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

Home ⋆ Asterisk

Best Open Source PBX Software 2026

Top 10 Best Voip Telephone Software of 2026 - Gitnux

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
The decision tree for sele...

Best Open Source VoIP and PBX Software

3CX has established itself as a leading choice for organizations seeking comprehensive functionality without enterprise-level complexity.
The platform operates as an open-standards software PBX, allowing businesses to deploy on Windows or Linux servers, host through major cloud providers, or utilize...

The 5 Best PBX Systems for Your Business in 2026

The Top 10 Best Free Open Source PBX Software: Asterisk

SIP SERVERS

MikoPBX

The first meaning is a media engine and signaling stack you can self-host: Asterisk and FreeSWITCH are the two foundational projects everyone else builds on.
...
You're a single business with under 100 extensions, on-premise or self-hosted, and you don't plan to resell voice service.
**Pick Asterisk...

Open Source PBX Software in 2026: A Practical Buyer's Guide

Open source solution for cloud-based multi-tenant PBX? - General Help

What is your favorite self hosted VOIP / PBX? (pls don't upvote)


Top open source PBX options for small office telephony

Best open source pbx : r/VOIP - Reddit

**VICIdial** --- The dominant open source contact center platform.
...
VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, feature set, active development, and community size.

Open Source Call Center Software: 5 Platforms Compared

Asterisk is a widely used open source PBX framework with call center components available as add-ons.

10 Open Source Call Center Software Options & Better Alternatives

**Quick answer:** The 10 strongest open source unified communications platforms in 2026 are FreeSWITCH, Asterisk, ICTCore, ICTDialer, Kamailio, OpenSIPS, FusionPBX, Jitsi, Matrix (Element), and BigBlueButton.
...
Asterisk is the original open source PBX and still the most widely deployed.
...
If you...

10 Best Open Source Unified Communications Software in ...

**Quick Comparison: Top Open Source PBX Platforms**
|**Platform**|**Core Engine**|**Interface (GUI)**|**Difficulty**|**Best For**|
|--|--|--|--|--|
|**Asterisk**|Asterisk|No (CLI only)|Expert|Developers building custom apps|
|**FreePBX**|Asterisk|Yes (Web)|Medium|SMBs & Standard Office VoIP|
|**Fusi...

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
|--|--|--|--|
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
...
|OpenSIPS|Free and open, training packag...

The Best Free and Open-Source PBX Software - GetVoIP

Here we list the 6 best open-source PBX solutions with information about their PBX software and features, so you can make an informed decision when finding a PBX provider:
1. Asterisk
2. SIP Foundry
3. FreePBX
4. 3CX
5. FreeSWITCH
6. OpenPBX by Voicetronix
### 1.

6 Best Open-Source PBX Solutions | Global Call Forwarding

- **Asterisk: ** An open source telephony engine that supports voice, video, data and text communication.
It provides PBX features such as call routing, auto attendants, VoIP integration and call conferencing.
- **FreePBX: ** A web-based graphical user interface built on top of the Asterisk engine.
...

Best Open Source PBX Software 2026 - SourceForge

10 Best Free Open Source PBX Software Solutions of 2025

- **Teams running 500+ concurrent calls and willing to invest in infrastructure**: Asterisk remains the most mature choice, though FreeSWITCH still wins on threading; if you want a lighter SIP foundation, Kamailio scales harder.
...
|Name|License|Self-Hosted|Federation|E2E Encryption|Best For|
...
|...

5 Best Open Source FreeSWITCH Alternatives (2026)

PlatformBest ForMulti-TenantWeb DashboardWhite-LabelSetup EffortAsterisk + FreePBXSingle business, on-premiseWorkarounds onlyFreePBXCustom workMediumFreeSWITCH (vanilla)Custom builds, contact center enginesYou build itNoneYou build itHighICTPBXITSPs, MSPs, hosted voice resellersNativeAngular SPANati...

1. **Asterisk**: This is one of the most popular open-source PBX solutions.

Open source best PBX sokution

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
If you are a small to medi...

Best Open Source VoIP and PBX Software

Here are the top ten free options which will help you select the best solution to meet your business requirements.
|Provider|Best For|Key Features|Pricing|Unique Differentiator|
...
|CallHippo|Businesses wanting ready-to-use cloud telephony|Hosted PBX, virtual numbers, smart call routing, IVR|Starts...

Top 10 Free Open Source PBX Software Solutions for ...

That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

FreePBX | Open source, web-based, IP PBX management tool.

YATE (Yet Another Telephony Engine) is a modular open-source VoIP PBX built using the Enhanced Nethack Telephony Interface (ENTI) framework.
...
Zulu UC is an enterprise-grade unified communications suite that offers video conferencing, instant messaging, presence control, and PBX functionality in a...

Best Free Open-Source PBX Software for 2023

### 1. 3CX: Best Overall for Small to Mid-Sized Businesses
...
FreePBX, developed by Sangoma, is the most popular open-source IP PBX platform available.

The 5 Best PBX Systems for Your Business in 2026 - SIP.US

Home ⋆ Asterisk

MikoPBX

VitalPBX - Advanced PBX System


Which open source self-hosted phone system software has the best web admin interface?

**Modern Open-Source Web GUI for Asterisk PBX**
...
Modern open-source web GUI for Asterisk PBX – extensions, SIP trunks, CDR, voicemail & real-time dashboard.
Docker deployment in minutes.

ankaios76/gonopbx: Modern open-source web GUI ...

GonoPBX is a web-based management interface for Asterisk –
a side project that grows step by step.
...
https://your-server-ip:3000

Modern Open-Source Phone System - GonoPBX

FreePBX is the most widely deployed open source PBX management interface in the world.

Open Source VoIP and PBX Phone Systems

FusionPBX is a web-based management interface for FreeSWITCH, and its standout capability is native multi-tenancy.
...
If you are a small to medium business that needs a phone system with a web interface and strong community support, start with FreePBX.
...
FreePBX is the best starting point for mos...

Best Open Source VoIP and PBX Software

**Wazo** – Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and **REST**-ful API.

List of Top Free Open Source & Self Hosted Application for ...

awesome-selfhosted

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

There isn't a single "best" because the right pick depends on whether you're a single business, a software team building a custom voice product, or a service provider hosting voice for multiple customers.
Asterisk plus FreePBX wins for single-business deployments.
FreeSWITCH wins for custom builds.
...

Open Source PBX Software in 2026: A Practical Buyer's Guide

Awesome-Selfhosted

VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, feature set, active development, and community size.

Open Source Call Center Software: 5 Platforms Compared

An open source, multi-tenant PBX management platform built on FreeSWITCH 1.10 and FusionPBX 6.6, connected through the ICTCore REST API and managed from a modern Angular 13 dashboard.
...
|Factor|Open Source Self-Hosted|Commercial Hosted PBX|
...
|License cost|Free|$15–$50/user/month|
...
For a sing...

Open Source PBX Software: The Complete 2026 Guide for Service ...

Best open source pbx

3CX Phone System earns the top spot in this ranking.

Top 10 Best Ip Phone Software | Tested in 2026

|**Platform**|**Core Engine**|**Interface (GUI)**|**Difficulty**|**Best For**|
...
|**Asterisk**|Asterisk|No (CLI only)|Expert|Developers building custom apps|
|**FreePBX**|Asterisk|Yes (Web)|Medium|SMBs & Standard Office VoIP|
|**FusionPBX**|FreeSWITCH|Yes (Modern)|High|Multi-tenant Service Provide...

Best Open Source PBX Software Guide (2026)

Self Hosted VOIP for Home : r/selfhosted

Self-Hosted Software and Apps

SIP SERVERS

The Best Free and Open-Source PBX Software


We want to replace our legacy PBX hardware with self-hosted open source software. What are our best options?

The software PBX code is free to download, but the system is not free to operate.
You still need to pay for the server hardware (or cloud VPS hosting), SIP trunking services for outside calls, and the electricity to run it.

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

- **Teams running 500+ concurrent calls and willing to invest in infrastructure**: Asterisk remains the most mature choice, though FreeSWITCH still wins on threading; if you want a lighter SIP foundation, Kamailio scales harder.
- **Organizations building programmable, cloud-native telephony**: Rout...

5 Best Open Source FreeSWITCH Alternatives (2026)

If you're looking for PBX software that you can host on your own server and need to handle 4 to 10 concurrent calls with extensions, along with call recording capabilities, there are several excellent options to consider:
1. **Asterisk**: This is one of the most popular open-source PBX solutions.
It...

Open source best PBX sokution

- **Top options in 2025** include *VICIdial, Asterisk, FreePBX, 3CX*, and *GOautodial*, each offering varying levels of complexity, UI friendliness, and feature sets.
...
## Best Open Source Call Center Software in 2025
|Provider|Key features|Pricing|Pros|Cons|
...
|1.
VICIdial|Predictive dialer, AC...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

The first meaning is a media engine and signaling stack you can self-host: Asterisk and FreeSWITCH are the two foundational projects everyone else builds on.
...
You're a single business with under 100 extensions, on-premise or self-hosted, and you don't plan to resell voice service.
**Pick Asterisk...

pbx · GitHub Topics

Based on stability, feature sets, and community activity, here are the top 5 solutions currently dominating the market for DIY and self-hosted telephony.
...
FreePBX is arguably the most popular open-source PBX in the world.
...
For very small teams (under 10 users) who need a quick setup, **3CX** o...

5 Best Free PBX Systems: The Pros, Cons, and Hidden Costs - hapbx

10 Open Source Call Center Software Options & Better Alternatives

Self hosted voip / phone system

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferencing - IM/C...

The Best Free and Open-Source PBX Software - GetVoIP

Best open source pbx

SIP SERVERS

Here we list the 6 best open-source PBX solutions with information about their PBX software and features, so you can make an informed decision when finding a PBX provider:
1. Asterisk
2. SIP Foundry
3. FreePBX
4. 3CX
5. FreeSWITCH
6. OpenPBX by Voicetronix

6 Best Open-Source PBX Solutions | Global Call Forwarding

Home ⋆ Asterisk

MikoPBX

We are going to look at every platform worth discussing: VICIdial, Asterisk, FreePBX, GoAutoDial, FusionPBX, Issabel, and the newer entrants.
...
VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, featur...

Self-hosted PBX Phone System for Business - Yeastar

Choose 3CX Hosted for managed hosting with full data control, or self-host on Amazon, Google, Azure, or on-prem with Windows or Linux.
...
Yes!
A 3CX PBX gives you the flexibility to choose with its Basic, PRO and AI Editions.

PBX System for Enterprises | Self-host or On-premise - 3CX


What open-source IP-PBX distribution should a local school district install?

IP Phone System Recommendations?

**Quick answer:** The 10 strongest open source unified communications platforms in 2026 are FreeSWITCH, Asterisk, ICTCore, ICTDialer, Kamailio, OpenSIPS, FusionPBX, Jitsi, Matrix (Element), and BigBlueButton.
...
**Best fit:** in-house PBX, school or campus phone systems, basic call recording.
...
#...

10 Best Open Source Unified Communications Software in ...

## 1.
Solutions serveurs Open Source
IP PABX :
- Asterisk et dérivatifs
- Freeswitch
Proxys SIP (Fed VoIP)
- Kamailio
- OpenSips
- Repro
- Flexisip

Aperçu des logiciels de téléphonie Open Source - Protocole SIP

That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

FreePBX | Open source, web-based, IP PBX management tool.

## PBX platforms
Some of these include SIP proxy functionality
- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Lin...

Open Source VOIP Software & Servers - VoIP-Info.org

Open source best PBX sokution : r/VOIP - Reddit

3. **Open Source Software PBX**– Open Source PBX developed using Perl.
...
5. **SIPxchange**– An enterprise-grade SIP PBX, SIP call manager and router, and SIP Softphone based on 100% SIP and 100% open source software.

74 Open Source VoIP Apps & Resources

Best VOIP Solutions for K12 Schools - Spiceworks Community

Home ⋆ Asterisk

Best Open Source PBX Software Guide (2026): Top Free Tools vs ...

We have simplified the approach to install and configure an Asterisk-based open source phone system on a server or virtual environment.
...
Start with the latest GNU GPL Install Script for Debian 12 to bring up a FreePBX system using the following steps:
- First, install Debian 12!
- In the cloud, c...

Freepbx - All The Built-In...

SIP SERVERS

Open Source Telephony for Schools – Infradapt

Best Open Source VoIP Software 2026 - SourceForge

1. 1#1: 3CX - Feature-rich open standards IP PBX software for Windows, Linux, and Mac with integrated video conferencing and mobile apps.
...
|#|Tool|Category|Overall|Features|Ease of Use|Value|
...
The review of top VoIP telephone software highlights 3CX as the standout choice, with its feature-ric...

Top 10 Best Voip Telephone Software of 2026 - Gitnux

PBX Solutions | Grandstream Networks

FreePBX, developed by Sangoma, is the most popular open-source IP PBX platform available.

The 5 Best PBX Systems for Your Business in 2026 - SIP.US

Open Source IP-PBX | Xorcom


Best open source VoIP phone system server for a non-profit organization

Best Open Source VoIP and PBX Software

VOIP for small non-profit, or something else? - Reddit

Best Free Open Source VoIP Software

Top Rated VoIP Software with Non profits 2026 | GetApp

10 Best Free Open Source PBX Software in 2024

Top Free and Open-Source Call Center Software - GetVoIP

6 Best Open-Source PBX Solutions | Global Call Forwarding

Top 5 VOIP Software Solutions For Nonprofits - Societ

The Best Free and Open-Source PBX Software - GetVoIP

Vonage Voice Api

Best Open Source Cloud Telephony & IVRS Software

Nonprofit Software: VoiP Call Center Solution - Aircall

VoIP for Nonprofits: Best Phone System Features & How to Choose

VoIP for Nonprofits: Top Features & Benefits for NGOs - Nextiva

10 Open Source Call Center Software Options & Better Alternatives

SIP SERVERS

VoIP for Charities: A Buyer's Guide to Affordable Nonprofit Phone ...


We need an open source PBX with multi-tenant support for a managed service provider. What software should we buy or deploy?

White label, multi-tenant PBX management web application built with **Angular 13** (ngx-admin / Nebular UI).
...
ICTPBX is a fully open source PBX management platform built for ISPs, ITSPs, and service providers who need a white label, multi-tenant phone system to resell under their own brand.
The f...

ICTPBX – White Label Multi-Tenant PBX Management - ICT Vision

SIPSTACK is multi-tenant PBX platform with advanced scriptable capabilities extending features to the imagination!
...
The open source multi-tenant, white-label SIP based PBX system.

GitHub - sipstack/sipstack: The open source multi-tenant, white-label SIP based PBX system.

Open source solution for cloud-based multi-tenant PBX?

The virtual-pbx application is designed for processing incoming/outgoing calls in an isolated
environment (numbered plan, routing calls, phones, cdrs, web gui and so forth. ) for multiple users.
...
Support Multi-tenant asterisk with Kamailio as sip registrar server / load balancer.

GitHub - g613/virtual-pbx: Multi Tenant PBX Platform

OPBX is an open-source, multi-tenant business PBX platform built on top of the Cloudonix CPaaS.
It provides a complete phone system for organizations of any size, combining a Laravel 12 backend, a React 18 frontend, a Go dialer worker for outbound campaigns, and a Java/Vert.x 5 AMD worker for stream...

Welcome to OPBX | Cloudonix Developer Resources

FusionPBX operates on FreeSWITCH.
It has a great web managed GUI, offers multitenancy, and scales beautifully.
...
-  I strongly suggest KAZOO by 2600hz.
Those guys know VoIP.
It's both white label, multi-tenant, and open source.
It uses Kamailio, Freeswitch, and custom Erlang under the hood.
https:...

White label multi-tenant PBX platform : r/msp - Reddit

FusionPBX can be used as a single or domain based multi-tenant PBX, carrier grade switch, call center server, fax server, VoIP server, voicemail server, conference server, voice application server, multi-tenant appliance framework and more.
...
Official FusionPBX - A full-featured domain based multi...

Official FusionPBX - A full-featured domain based multi-tenant PBX ...

Is used as a highly available single or domain based multi-tenant PBX, carrier grade switch, call center server, fax server, and more...Official FusionPBX - A full-featured domain based multi-tenant PBX and voice switch for FreeSwitch.

FusionPBX

FS PBX is designed with VoIP service providers in mind, particularly those needing a white-label PBX solution for their customers.
It supports full multi-tenancy, allowing you to host multiple client PBX instances on a single system – each client (tenant) is completely separated in the database and ...

FS PBX – Open Source PBX Dashboard for VoIP Providers

Multi-tenant hosted PBX based on asterisk.
Single server for 100+ undepnded offices PBX.
...
Each client (or separate office, tenant) has a dedicated, isolated cloud PBX , with separate :
- exntensions (with PBX functions — followme, Forward, Voice/Video Mail, Blacklists etc..)
...
- Call parkign sp...

GitHub - a4business/MPBX: Multitenant PBX

FusionPBX is a powerful open-source PBX platform that is scalable, adaptable and intuitive to use.
...
FusionPBX is an open source piece of software that is essentially a Graphical User Interface (GUI) for FreeSWITCH, using the GUI to create and edit XML files that are then used to control the switc...

FusionPBX Tutorial - WhichVoIP

Other multi tenant pbx - FusionPBX Forums

HoduPBX Is based on free switch which is similar to Asterisk and does this by making resellers tenants and extensions.
...
There are a number of Multi Tenant PBXs based on Asterisk; VitalPBX, MitraPBX, Voxo, Xorcom and many more.
...
If you want there is Wazo Platform (https://wazo-platform.org) whi...

Building a Multi-Tenant Asterisk Platform

Best for: Contact centers, carrier-grade platforms, multi-tenant PBX systems, large-scale IVR deployments.
...
A highly advanced, full-featured graphical interface built strictly on FreeSWITCH.
Natively designed for multi-tenant environments, making it ideal for hosting multiple businesses or contac...

Open Source VoIP Development - FreeSWITCH, Asterisk ...

Its defining feature is multi-tenancy.
This allows a single server to host multiple separate domains for different clients, keeping their data and traffic completely isolated.

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

PortSIP PBX, on the other hand, offers a genuine multi-tenant PBX solution.
Unlike other PBX systems that necessitate a separate PBX instance for each tenant, PortSIP PBX enables service providers to establish a single instance and create over 100K tenants within that PBX instance.
Each tenant can h...

Multi-tenant PBX: Genuine or Pseudo? - PortSIP

Step by step inbound multi-tenant - FusionPBX Forums

Multi Tenant PBX Solution | VitalPBX - Advanced PBX System

A Multi-Tenant IP PBX (Private Branch Exchange) is a VoIP-based communication system that allows multiple tenants or subaccounts to operate independently under a single platform.
Each tenant—such as a business branch, reseller, or client—can securely manage their own users, extensions, and configura...

Top 5 Features of Multi Tenant IP PBX Software in 2025 - ASTPP

Multi-Tenant PBX (Private Branch Exchange), cloud platform for ...


What open source self-hosted PBX software is easiest to configure and manage?

It provides a polished, commercial-grade experience with zero configuration hassles.
...
**Quick Comparison: Top Open Source PBX Platforms**
|**Platform**|**Core Engine**|**Interface (GUI)**|**Difficulty**|**Best For**|
|--|--|--|--|--|
|**Asterisk**|Asterisk|No (CLI only)|Expert|Developers building...

Voice over IP (VoIP)

Open source best PBX sokution

Switched to 3CX and its much simpler to run and configure.

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

FreePBX | Open source, web-based, IP PBX management tool.

PBXInAFlash is designed to really make it possible to set up the PBX server of yours, as the title puts it, in a flash.
...
With the main goal of no bugs and no bloat, PBXInAFlash appears to be the easiest and quickest answer to adopt.

7 Free Open Source PBX Software Solutions - VOIP Solutions

Self hosted voip / phone system

|Name|License|Self-Hosted|Federation|E2E Encryption|Best For|
...
|FusionPBX|—|✓|—|—|Multi-tenant PBX; web UI; teams wanting FreeSWITCH without the config pain|
...
**If you need a complete, self-hosted PBX and can invest in setup**, start with FusionPBX—it's FreeSWITCH with a UI, cutting deployment...

5 Best Open Source FreeSWITCH Alternatives (2026)

### Easy manage via browser
Don't want to deal with Asterisk?
Do you want a simple and flexible telephony?
MikoPBX is the best choice!
Easy to install and manage via web interface by yourself!

MikoPBX

Best open source pbx

|Provider|Key features|Pricing|Pros|Cons|
...
|2.
Asterisk|Open source PBX toolkit with IVR, call routing, conferencing, and VoIP capabilities.|Free (self-hosted)|Highly customizable with strong community support and modular structure.|Requires advanced technical knowledge and manual configuration.|...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
Here are some suggestions for organizations of various sizes and industries:
- Best for large businesses and enterprises: SIP Foundry
- Best for SMBs: Asterisk
- Best for startups and small businesses: OpenPBX, Kamailio, or OpenSIPS
- Best...

The Best Free and Open-Source PBX Software - GetVoIP

Home ⋆ Asterisk

10 Open Source Call Center Software Options & Better Alternatives

Best Open Source Linux PBX Software 2026

Suggestions for Hosting a PBX System at Home - VoIP

You're a single business with under 100 extensions, on-premise or self-hosted, and you don't plan to resell voice service.
**Pick Asterisk plus FreePBX.** The community is huge, the deployment is well-trodden, and the feature set is more than enough for an internal phone system.
...
There isn't a si...

Open Source PBX Software in 2026: A Practical Buyer's Guide

With FreePBX Distro, you can quickly install and configure your Asterisk-based open-source PBX system.

6 Best Open-Source PBX Solutions | Global Call Forwarding

3CX PBX is easy for your IT team to install and manage.
No prior telco experience needed.

PBX System for Enterprises | Self-host or On-premise - 3CX

Yeastar P-Series is a phone system hosted in the cloud or self-managed.

Self-hosted PBX Phone System for Business - Yeastar


Best free and open source IP-PBX for a hotel phone system

FreePBX is a widely-used open-source GUI for managing Asterisk PBX systems, and it can be an
excellent telephony platform for hotels and hospitality properties.

FreePBX: Telephony Solutions for Hotels & Hospitality

FreePBX 17

Best open source pbx : r/VOIP - Reddit

MikoPBX

Best Open Source VoIP Software 2026 - SourceForge

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

Open Source VOIP Software & Servers - VoIP-Info.org

Freepbx - All The Built-In...

FreePBX

10 Best Open Source Softswitch for Free - VoIP Forum

New, Free Hospitality Management System for Asterisk

SIP SERVERS

FreePBX, developed by Sangoma, is the most popular open-source IP PBX platform available.

The 5 Best PBX Systems for Your Business in 2026 - SIP.US

your free linux pbx: flexible, secure & easy - 3CX

Best Free Open-Source PBX Software for 2023

5 Best Free PBX Systems: The Pros, Cons, and Hidden Costs - hapbx

Open Source IP-PBX | Xorcom


We are a medical clinic needing a self-hosted HIPAA compliant open source PBX. What software should we use?

So, we built our own stack: Asterisk (an open-source PBX), AWS Chime SDK (for SIP trunking and phone numbers), and a FastAPI shim that bridges old-school telephony to modern WebSocket APIs.

An open-source, HIPAA-eligible Twilio alternative - Inkbox

FreePBX, Hosted in the Cloud and Hipaa - Spiceworks Community

FreePBX | Open source, web-based, IP PBX management tool.

The healthcare industry faces unique communication challenges,with a focus on patient privacy,regulatory compliance(especially HIPAA),and reliable coordination between care teams.Healthcare providers—from hospitals and clinics to home health agencies—need an IP-PBX system that protects patient data,...

IP-PBX for Healthcare:Redstone's HIPAA-Compliant Communication ...

**Quick answer:** The 10 strongest open source unified communications platforms in 2026 are FreeSWITCH, Asterisk, ICTCore, ICTDialer, Kamailio, OpenSIPS, FusionPBX, Jitsi, Matrix (Element), and BigBlueButton.
...
- **Full data control.** Self-hosting keeps call recordings, chat logs, and metadata on...

10 Best Open Source Unified Communications Software in ...

VectorlyApp/open-telephony-stack: A HIPAA-Compliant DIY Alternative to Twilio for Voice AI Applications Using Asterisk PBX and AWS Chime SIP Trunking.
https://lnkd.in/gdqe8Hmz Unlocking the Future of Healthcare Communication: The Open Telephony Stack Introducing a HIPAA-eligible, production-ready te...

Unlock HIPAA-Compliant Telephony with Open Telephony Stack

- Its data centers are SSAE 16 SOC 1- and SOC 2 Type 1-certified and HIPAA- and PCI DSS-compliant.

10 Open Source Call Center Software Options & Better Alternatives

Home ⋆ Asterisk

- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Linux: ISDN PBX with H.323 GW
- sipwitch: GNU project’s Pure SIP c...

IssabelPBX download

We are proud to say we are a HIPAA compliant VoIP provider and are working our way quickly to being HIPAA Certified.

Healthcare Communications: HIPAA Compliant VoIP - VirtualPBX

PBX.IM not only is a HIPAA-compliant voip solution for healthcare, but also ISO27001 and GDPR compliant, with a 99.99% uptime guarantee and boasting multiple data centers on every continent.

VoIP Cloud Phone System for Healthcare & Medical Offices

Dograh is open source under BSD 2-Clause.
Self-host it inside your HIPAA-controlled environment and patient audio never leaves.
...
Dograh is open-source software you deploy in a HIPAA-compliant manner.
With self-hosting you control all patient data inside your own infrastructure.

HIPAA-ready voice agents for healthcare.

|**Provider**|**How Free**|**User limit**|**Standout Features**|**Best For**|
...
|Freshdesk|Free forever plan|Up to 2 agents|- Ticketing System - Customizable reporting templates - Shared inbox|Businesses in the healthcare industry that need high security, reliability, and scalability|
...
|FreePBX...

7 Best Free Cloud PBX Providers - GetVoIP

A HIPAA-compliant VoIP system must offer encryption, secure access controls, and audit logging.
Additionally, the provider must sign a Business Associate Agreement (BAA) to ensure they protect ePHI.

HIPAA-Compliant VoIP: What it is, Security, & Best Practices - PBX.IM

Best Open Source PBX Software 2026

- End-to-end protection with TLS/SRTP, encrypted messaging, and encrypted voicemail and recordings.
- RBAC, SSO/MFA, administrator approval workflows, and comprehensive audit logs with export options for compliance teams.
- Compliance recording with pause/resume, automated redaction, and transcripti...

HIPAA-Compliant Phone Systems for Clinics and Hospitals

74 Open Source VoIP Apps & Resources

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferencing - IM/C...

The Best Free and Open-Source PBX Software - GetVoIP

Best open source pbx : r/VOIP - Reddit


What is the best open source PBX software for a multi-location retail business?

Best open source pbx : r/VOIP

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, feature set, active development, and community size.
...
But for any operation that includes outbound dialing, campaign management, or predictive dialin...

Open Source Call Center Software: 5 Platforms Compared

Best Open Source PBX Software Guide (2026)

Open Source Soft Switches & IP Telephony Apps - ICTFax

**Quick answer:** The 10 strongest open source unified communications platforms in 2026 are FreeSWITCH, Asterisk, ICTCore, ICTDialer, Kamailio, OpenSIPS, FusionPBX, Jitsi, Matrix (Element), and BigBlueButton.

Best Open Source PBX Software 2026

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
- Best for large businesses and enterprises: SIP Foundry
- Best for SMBs: Asterisk
- Best for startups and small businesses: OpenPBX, Kamailio, or OpenSIPS
- Best for small remote teams: 3CX
- Best for those in the education/government sec...

The Best Free and Open-Source PBX Software

Open source solution for cloud-based multi-tenant PBX? - General Help

Best Free Open-Source PBX Software for 2023

**ASTPP** is renowned as the #1 open source VoIP Billing Solution based on FreeSWITCH.

ASTPP: Open Source VoIP Billing Solution

|Provider|Best For|Key Features|Pricing|Unique Differentiator|
...
It depends on your budget and requirements, but if you want access to advanced features at competitive rates, then CallHippo is your best choice.

Top 10 Free Open Source PBX Software Solutions for ...

- **Consider integration requirements carefully.** CRM integration, calendar synchronization, and connections to collaboration platforms improve workflow efficiency.
Verify that prospective platforms support your essential business applications.
- **Calculate total ownership costs.** Initial pricing...

The 5 Best PBX Systems for Your Business in 2026

Open Source VOIP Software & Servers - VoIP-Info.org

10 Open Source Call Center Software Options & Better Alternatives

Seeking Advice: Best Secure and Open-Source PBX for Small Business?

What's the best software for multi-location PBX management?

Official FusionPBX - A full-featured domain based multi-tenant PBX ...

VitalPBX - Advanced PBX System


Open source self-hosted PBX software comparison

|Platform|Best For|Multi-Tenant|Web Dashboard|White-Label|Setup Effort|
...
|Asterisk + FreePBX|Single business, on-premise|Workarounds only|FreePBX|Custom work|Medium|
|FreeSWITCH (vanilla)|Custom builds, contact center engines|You build it|None|You build it|High|
|ICTPBX|ITSPs, MSPs, hosted voice ...

Open Source PBX Software in 2026: A Practical Buyer’s Guide

|Name|License|Self-Hosted|Federation|E2E Encryption|Best For|
...
|Asterisk|—|✓|—|—|High-call-volume PBX; mature ecosystem; teams comfortable with C|
|Kamailio|GPL|✓|✓|—|Carrier-grade SIP routing; extreme scalability; telecom operators|
|Routr|MIT|✓|—|—|Programmable SIP; modern stack; teams preferri...

5 Best Open Source FreeSWITCH Alternatives (2026)

|Provider|Key features|Pricing|Pros|Cons|
...
|1.
VICIdial|Predictive dialer, ACD, IVR, call recording, CRM integration, web-based agent interface.|Free (open-source) or $400/month (hosted)|Powerful for high-volume outbound campaigns with predictive dialing and reporting.|Interface can feel dated; r...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

**Quick Comparison: Top Open Source PBX Platforms**
|**Platform**|**Core Engine**|**Interface (GUI)**|**Difficulty**|**Best For**|
|--|--|--|--|--|
|**Asterisk**|Asterisk|No (CLI only)|Expert|Developers building custom apps|
|**FreePBX**|Asterisk|Yes (Web)|Medium|SMBs & Standard Office VoIP|
|**Fusi...

Best open source pbx : r/VOIP

1. **Asterisk**: This is one of the most popular open-source PBX solutions.
It offers a high level of customization and control, allowing you to set up extensions, manage calls, and implement recording features.
...
2. **FreePBX**: Built on top of Asterisk, FreePBX provides a user-friendly web inter...

Open source best PBX sokution

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

|Platform|Outbound Predictive Dialing|Inbound ACD|Campaign Management|Lead List Handling|Real-Time Monitoring|Active Development|
|--|--|--|--|--|--|--|
|**VICIdial**|Yes (native)|Yes|Yes|Yes|Yes|Yes (SVN trunk)|
|**Asterisk**|Build it yourself|Build it yourself|No|No|No|Yes|
|**FreePBX**|No|Yes (ba...

Open Source Call Center Software: 5 Platforms Compared

Asterisk is an open-source PBX platform that supports VoIP calling, IVR, call queues, SIP trunking, and custom dial plans.

Vonage Voice Api

Self hosted voip / phone system

|**Feature**|**Free / Open-Source PBX**|**HAPBX Managed Cloud**|
|--|--|--|
|**Upfront License**|$0 (GPL)|Affordable Annual/Monthly|
|**Hardware/Hosting**|You pay for VPS or Server|Included in Infrastructure Fee|
|**Redundancy**|None (Single Point of Failure)|**High Availability (Global Cluster)**|
...

5 Best Free PBX Systems: The Pros, Cons, and Hidden Costs - hapbx

|#|Tools|Category|Value|Overall|
...
|1|3CX Phone System|self-hosted PBX|9.6/10|9.4/10|
|2|FreePBX|open-source PBX|9.3/10|9.0/10|
|3|Asterisk|telephony engine|8.7/10|8.8/10|
|4|FusionPBX|Asterisk GUI|8.2/10|8.5/10|
|5|FreeSWITCH|VoIP switch|8.1/10|8.2/10|
|6|Kamailio|SIP proxy|8.0/10|7.9/10|

Top 10 Best Ip Phone Software | Tested in 2026

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
FreePBX is the best starti...

Best Open Source VoIP and PBX Software

SIP SERVERS

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferencing - IM/Chat - Unified Messaging|Universities an...

The Best Free and Open-Source PBX Software

6 Best Open-Source PBX Solutions | Global Call Forwarding

FreePBX | Open source, web-based, IP PBX management tool.

Home ⋆ Asterisk

Self-hosted PBX Phone System for Business


What open source IP PBX software supports flexible custom IVR and dialplan scripting?

- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
...
## IVR / Voice Mail platforms
- Asterisk: Open Source PBX with built-in IVR server
- Bayonne: GNU project IVR server
- ICTDialer An Open Source smart autodialer software bundled with graphical IVR Designer tools.
- O...

ICTDialer is bundled with free and open source web-based IVR designer that can design your IVR through interactive, graphical, drag and drop feature.
...
CallButler is a FREE Windows-based open source PBX, IVR and Auto-Attendant Phone System built on .NET.

Best Open Source IVR Software

| |**How Free**|**Call Recording**|**Voice Customization**|**Text to Speech**|**Call Logging**|**Voicemail**|
...
|**Ekiga**|Totally Free|No|No|Yes|No|Yes|
|**MicroSIP**|Partially Free|No|Yes|Yes|No|No|
|**Voxibot**|Partially Free|Yes|Yes|Yes|Yes|Yes|
|**VBVoice by Pronexus**|Totally Free|Yes|Yes|Ye...

The Best Free and Open-Source IVR Software

Top Rated IVR Software with Open source 2026 - GetApp

Home ⋆ Asterisk

Open Source Asterisk IP PBX Call Center Dialer Predictive Dialer Hosted Dialer IVR Voice Logger FMC Gateway
Asterisk is free and open source software that turns an ordinary computer into a communications server.

Open Source IVR Platforms – Free Self-Hosted Deployment - Dograh

This is a module for FreePBX©.
...
Module of FreePBX (IVR) :: Creates Digital Receptionist (aka Auto-Attendant, aka Interactive Voice Response) menus.
These can be used to send callers to different locations (eg, Press 1 for sales) and/or allow direct-dialing of extension numbers.

GitHub - FreePBX/ivr: Module of FreePBX (IVR) :: Creates Digital Receptionist (aka Auto-Attendant, aka Interactive Voice Response) menus. These can be used to send callers to different locations (eg, Press 1 for sales) and/or allow direct-dialing of extension numbers.

AsteriskNOW is free but you would need to write a script in AGI to interface pull the data from the database and read it to the caller.
...
If you're inexperienced try Apstel Visual Dialplan Pro.

Any suggestions on an open source IVR solution. : r/sysadmin - Reddit

Asterisk is an open-source telephony platform for building custom IVR systems.
It allows businesses to create advanced call flows, automate routing, and integrate voice applications with SIP-based communication infrastructure.
...
FreeSWITCH is a powerful open-source communication platform designed ...

10 Best Free IVR Software & Open Source Options in 2026 - CallHippo

When an inbound call reaches your call center, open source software uses preconfigured call routing rules and features like interactive voice response (**IVR**) and auto attendants to send customers to their desired destinations.
...
Asterisk is a widely used open source PBX framework with call cent...

10 Open Source Call Center Software Options & Better Alternatives

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
Companies can create and deploy a variety of communication services including Voice over Internet Protocol (VoIP), Interactive Voice Response (IVR), and Automatic Call Distribution (ACD).
...
- **IVR: ** Asterisk’s IVR platform includes fe...

The Best Free and Open-Source PBX Software - GetVoIP

SIP SERVERS

Asterisk IP PBX | Open Source IP PBX System Solutions - astTECS

Open Source Voip Software , Top IP Telephony Projects in 2023 - ICT Innovations

|Provider|Key features|Pricing|Pros|Cons|
...
|1.
VICIdial|Predictive dialer, ACD, IVR, call recording, CRM integration, web-based agent interface.|Free (open-source) or $400/month (hosted)|Powerful for high-volume outbound campaigns with predictive dialing and reporting.|Interface can feel dated; r...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

Asterisk’s PBX software comes packed with standard PBX features such as IVR, ACD, conference calling, and voicemail.

**OpenPBX:**Developed by Australian company Voicetronix, OpenPBX is a popular solution both with small offices and with large call centers.
With features like unlimited voicemail, auto-attendant, automatic call distribution, music on hold and call parking it’s easy to see why.
It also has the advant...

Top 50 Open Source VoIP Apps

Best Open Source Telephony Software 2026 - SourceForge


Recommend a lightweight open source PBX server for a micro business with 10 extensions.

3CX is decent, but the free version limits you to 10 extensions I believe, among other unnecessary restrictions.
...
@MarcSki the Free version of 3CX Phone system is NOT limited to 10 extensions, it has unlimited extensions but it allows 4 simultaneous calls, the demo version allows 2 calls but allo...

Best Windows Free VOIP PABX - Software & Applications

The most famous ones are Asterisk and FreeSIWTCH in the B2BUA world.
50 to 300 extensions are not much to handle.
both can be handled easily.
Also, Both have very good APIs and programming interfaces.
If you want to have High Availability or Load Balancing in the SIP level you may consider having an...

Best open source pbx : r/VOIP

If you're looking for PBX software that you can host on your own server and need to handle 4 to 10 concurrent calls with extensions, along with call recording capabilities, there are several excellent options to consider:
1. **Asterisk**: This is one of the most popular open-source PBX solutions.
It...

Open source best PBX sokution

Best Open Source Linux PBX Software 2026

Best Open Source PBX Software Guide (2026)

FreePBX | Open source, web-based, IP PBX management tool.

Asterisk is a widely used open source PBX framework with call center components available as add-ons.
Businesses often start with a basic phone system and add a third-party call center or delve further into its call center capabilities.
...
Linphone
Linphone isn’t a call center; it’s a popular open ...

## PBX platforms
Some of these include SIP proxy functionality
- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Lin...

Open Source VOIP Software & Servers - VoIP-Info.org

FusionPBX is a multi-tenant PBX and voice switch for FreeSWITCH, a highly scalable, multi-threaded, cross-platform communication platform.
FusionPBX can be used either as a single or domain based PBX, and offers several functionalities: as carrier grade switch, call center server, voicemail server, ...

Best Open Source PBX Software 2026

3CX is an easy to manage, all-in-one communications system for Linux that takes just minutes to install.

Get a Linux PBX free for unlimited extensions

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
|--|--|--|--|
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferenc...

The Best Free and Open-Source PBX Software

# Free simple PBX for your business
...
MikoPBX is completely free.
You can use paid modules to extend the capabilities of your PBX.

MikoPBX

Home ⋆ Asterisk

FreePBX is an open-source web-based graphical user interface (GUI) that manages Asterisk
-
...
That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

FreePBX

Open source solution for cloud-based multi-tenant PBX?

Here we list the 6 best open-source PBX solutions with information about their PBX software and features, so you can make an informed decision when finding a PBX provider:
1. Asterisk
2. SIP Foundry
3. FreePBX
4. 3CX
5. FreeSWITCH
6. OpenPBX by Voicetronix
...
3CX is another open-source PBX software...

6 Best Open-Source PBX Solutions | Global Call Forwarding

**VICIdial** --- The dominant open source contact center platform.
...
VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, feature set, active development, and community size.
For inbound-only operations ...

Open Source Call Center Software: 5 Platforms Compared


What open source PBX software is best for high-volume call concurrency?

Open source best PBX sokution : r/VOIP - Reddit

**VICIdial** --- The dominant open source contact center platform.
...
This is the only open source platform purpose-built for high-volume outbound contact center operations.
...
### What is the best open source call center software in 2026?
VICIdial is the only open source platform purpose-built fo...

- **Need a drop-in replacement with better scaling and modern architecture:** FreeSWITCH handles 500+ concurrent calls where Asterisk's single-threaded design hits limits, making it the natural upgrade path for growing deployments.
...
|Name|License|Self-Hosted|Federation|E2E Encryption|Best For|
|-...

5 Best Open Source Asterisk Alternatives (2026)

|Bottom Line|Asterisk excels as a mature and approachable PBX for traditional business telephony, while FreeSWITCH is built for large-scale, cloud-native, and media-intensive communication platforms.|
...
|**Scalability**|Excellent for high-concurrency deployments|Strong for SMB and mid-sized deploy...

FreeSWITCH vs Asterisk: Which Open-Source PBX Is Better?

- Guaranteed Performance: By isolating resources, we maintain a stable latency of approximately 50ms and support 100+ concurrent calls by default.

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

- Asterisk does not allow more than 4,500 concurrent calls; this is limited in the source code.

Is Asterisk PBX Multicore? Test With More Than 4,500 ... - VitalPBX

Built specifically for high concurrency, stability, and enterprise-grade routing.
Designed from the ground up to handle massive call volumes with native multi-tenant architecture support, making it the go-to engine for large contact centers and carrier-grade platforms.
...
|Platform|Best For|Scalabi...

Open Source VoIP Development - FreeSWITCH, Asterisk ...

FreePBX, developed by Sangoma, is the most popular open-source IP PBX platform available.

The 5 Best PBX Systems for Your Business in 2026 - SIP.US

### 1.
...
- **Best For:** High-volume outbound & blended campaigns
- **Key Features:** Predictive dialing, real-time monitoring, CRM integration

Top 10 Open Source Call Center Software Solutions

Best open source pbx

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
OpenSIPS can handle over 5000 call setups per second.
...
Kamailio is an open source SIP server able to handle thousands of call setups per second.
...
Here are some suggestions for organizations of various sizes and industries:
- Best for...

The Best Free and Open-Source PBX Software - GetVoIP

### 2.
ICTBroadcast – Best for High-Volume Outbound and Multi-Channel Broadcasting
ICTBroadcast is a multi-channel outbound broadcasting platform that handles voice, SMS, fax, and email from one installation.
It runs on both Asterisk and FreeSWITCH, giving you high-concurrency outbound calling with ...

Best Open Source Contact Center Software in 2026

10 Open Source Call Center Software Options & Better Alternatives

Best Open Source Linux PBX Software 2026

Best Open Source Telephony Software 2026 - SourceForge

Any suggestion for a free open source call center software for our startup? Could VICIDial be good for that? Anyone experienced with it?

ICTBroadcast is an open source call center platform built on FreeSWITCH and Asterisk.
...
The software itself is free.

Cloud Call Center Software: Best Open Source Options for 2026


We want to self-host our office phone system in containers. Which open source PBX software works best?

FreePBX | Open source, web-based, IP PBX management tool.

This is MVP Docker Compose application for having FreePBX - A Voice over IP manager for Asterisk, running in containers.
Upon starting this multi-container application, it will give you a turnkey PBX system for SIP calling and also enterprise grade security for managing secrets.

GitHub - escomputers/freepbx-docker: Dockerized FreePBX 16 with Asterisk 16, PHP 7.4, dedicated MySQL database, Hashicorp Vault integration and data persistence

If you want a turnkey solution and a 5-minute install, nothing comes close to Incredible PBX.

Best open source pbx : r/VOIP - Reddit

**Quick answer:** The 10 strongest open source unified communications platforms in 2026 are FreeSWITCH, Asterisk, ICTCore, ICTDialer, Kamailio, OpenSIPS, FusionPBX, Jitsi, Matrix (Element), and BigBlueButton.
...
- **REST APIs and webhooks.** Standard across every project on this list.
- **Container...

10 Best Open Source Unified Communications Software in ...

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
...
SIP Foundry is a communications solution optimized...

Home ⋆ Asterisk

Incredible PBX is an open source project that provides all the components you need to build your own **unified communications** solution.
You can deploy Incredible PBX with on-premises hardware including Raspberry Pi, in the cloud on a variety of platforms, or on virtual machine platforms like Virtu...

MikoPBX - a free, open-source PBX with a friendly interface, based on Asterisk core.
...
MikoPBX is an open-source GUI (Graphical User Interface) that controls and manages Asterisk (PBX).

MikoPBX - Docker Hub

Telephony software (IP-PBX, VoIP) that can be containerized?

- **Top options in 2025** include *VICIdial, Asterisk, FreePBX, 3CX*, and *GOautodial*, each offering varying levels of complexity, UI friendliness, and feature sets.
...
## Best Open Source Call Center Software in 2025
|Provider|Key features|Pricing|Pros|Cons|
...
|2.
Asterisk|Open source PBX toolk...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

Top Open Source PBX Software Solutions of 2021 - ICT Innovations

7 Free Open Source PBX Software Solutions - VOIP Solutions

Once you have installed the necessary software, you should download the specifically designed PBX software.
This should come with instructions on how to install it on your machine.
Generally this will involve setting up a server – either through a virtual machine or dedicated hardware – and installi...

Best Open Source PBX Software 2026

This (non official) repository provides dockerized Asterisk PBX.
...
- Asterisk powering IP PBX systems and VoIP gateways

GitHub - mlan/docker-asterisk: Docker image providing Asterisk PBX

1. **Asterisk**: This is one of the most popular open-source PBX solutions.

Open source best PBX sokution

### What is the best open source call center software in 2026?
VICIdial is the only open source platform purpose-built for contact center operations, and it is the clear leader by every metric --- install base, feature set, active development, and community size.
For inbound-only operations with sim...

Open Source Call Center Software: 5 Platforms Compared

You're a single business with under 100 extensions, on-premise or self-hosted, and you don't plan to resell voice service.
**Pick Asterisk plus FreePBX.** The community is huge, the deployment is well-trodden, and the feature set is more than enough for an internal phone system.
...
There isn't a si...

Open Source PBX Software in 2026: A Practical Buyer's Guide

MikoPBX

## PBX platforms
Some of these include SIP proxy functionality
- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Lin...

Open Source VOIP Software & Servers - VoIP-Info.org


Best open source PBX for a law firm needing call recording and voicemail to email

Best Open Source Call Recording 2025

**VICIdial** --- The dominant open source contact center platform.
Full predictive dialing, inbound ACD, blended campaigns, call recording, real-time monitoring, agent scripting, and a non-agent API.
...
- **Call recording**: Automatic recording of all calls with per-campaign and per-agent configura...

VICIdial Open Source Call Recording - OrecX

Open source best PBX sokution

10 Open Source Call Center Software Options & Better Alternatives

|Provider|Key features|Pricing|Pros|Cons|
...
|1.
...
|3.
FreePBX|GUI for Asterisk with IVR, call queues, voicemail, call recording, and reporting.|Free (self-hosted; optional paid modules)|User-friendly interface on top of Asterisk with easier management for SMBs.|Advanced custom features often req...

Discover the Best Open Source Call Center Software ...

Top 18 Free Call Center Software Tools to Power Your Support ...

6 Best Open-Source PBX Solutions | Global Call Forwarding

Best Open Source Software for Recording Calls

The Best Free and Open-Source PBX Software - GetVoIP

oreka download

This is a module for FreePBX© . FreePBX is an open source GUI (graphical user interface) that controls and manages Asterisk© (PBX).
...
Module of FreePBX (Call Recording) :: Provides much of the call recording functionality.

GitHub - FreePBX/callrecording: Module of FreePBX (Call Recording)

MikoPBX

OpenSource G711, G722, G729, Opus & Other Format VoIP SIP Recorder

voiceip/oreka: OpenSource G711, G722, G729, Opus & ...

Best open source call recording software of December 2025 | FitGap

Best open source pbx : r/VOIP - Reddit

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

Home ⋆ Asterisk

Open Source Call Recording - Cisco Community


What open source phone system software can we self-host on mini PCs or low-power hardware?

FreePBX is a nice and open source software suite built on top of Asterisk with a GUI.

Self hosted voip / phone system

I have been developing an open-source telephony platform designed to serve as a self-hosted alternative to cloud services like Twilio.

Show HN: Open-source self-hosted telephony platform with composable audio DSL

FreePBX | Open source, web-based, IP PBX management tool.

**Asterisk** – Easy to use but advanced IP PBX system, VoIP gateway and conference server.
...
**Freepbx** – Web-based open source GUI that controls and manages Asterisk.
...
**FreeSWITCH** – Scalable open source cross-platform telephony platform.
MPL-2.0 C
**FusionPBX** – Open source project that p...

List of Top Free Open Source & Self Hosted Application for ...

For video chat, I've used Jitsi, which, when checked today (2021-03-02) has a self hosting guide on their Github repository.
...
Matrix.org uses Jitsi as their embedded Video-Call software.
...
Matrix also has text chat, is decentralized and self-hostable.
...
If you only want VOIP, I've used Mumble...

What's a good FOSS X-platform self-hosted VOIP program?

Open source VoIP software lets businesses and individuals replace expensive commercial phone systems with self-hosted solutions built on transparent, community-driven code.
Platforms like Asterisk, FreePBX, and FusionPBX provide full-featured PBX capabilities at a fraction of the cost of proprietary...

Open Source VoIP and PBX Phone Systems

## 3CX PBX
Self-host your own PBX system for free for up to 10 users with the Startup version.
...
TeamSpeak 3 Client is absolutely FREE to download and install on your PC, Mac or Linux Box.
Once installed, you can freely access 1000s of public TeamSpeak servers or even your own private TeamSpeak se...

Voice over IP (VoIP)

Built for companies needing a self-hosted PBX with queues, IVR, recording, and browser calling.
...
Built for iT-led teams needing self-hosted Asterisk PBX with visual routing.
...
3CX Phone System is built as a self-hosted IP-PBX with inbound routing, IVR, queues, and call recording plus a browser-...

Vonage Voice Api

- **Top options in 2025** include *VICIdial, Asterisk, FreePBX, 3CX*, and *GOautodial*, each offering varying levels of complexity, UI friendliness, and feature sets.
...
|Provider|Key features|Pricing|Pros|Cons|
...
|1.
VICIdial|Predictive dialer, ACD, IVR, call recording, CRM integration, web-base...

Explore the Top 5 Open Source Call Center Software Solutions - Voiso

Here we list the 6 best open-source PBX solutions with information about their PBX software and features, so you can make an informed decision when finding a PBX provider:
1. Asterisk
2. SIP Foundry
3. FreePBX
4. 3CX
5. FreeSWITCH
6. OpenPBX by Voicetronix

A production-grade, open-source AI receptionist that answers your business phone calls using OpenAI's Realtime API -- the same speech-to-speech model that powers ChatGPT Advanced Voice.
Self-hosted.
No vendor lock-in.
...
- **Self-hosted.** Runs on your infrastructure.
Your data stays on your server...

kirklandsig/AIReceptionist: Open-source, self-hosted AI ... - GitHub

The open source VoIP ecosystem includes free software for every layer of a telephony stack: PBX systems like Asterisk and FreeSWITCH for call processing, management interfaces like FreePBX and FusionPBX for web-based administration, SIP proxies like Kamailio for large-scale routing, softphone client...

Free Open Source VoIP Software

Open Source or very lost cost VOIP or PBX System at home for Small Business

Best open source pbx

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
You install it on bare met...

Best Open Source VoIP and PBX Software

**FreeSWITCH**– FreeSWITCH is a telephony platform designed to facilitate the creation of voice and chat driven products scaling from a soft-phone up to a soft-switch.
It can be used as a simple switching engine, a media gateway or a media server to host IVR applications using simple scripts or XML ...

74 Open Source VoIP Apps & Resources

What is your favorite self hosted VOIP / PBX? (pls don't upvote)

trixbox CE is an easy to install, VOIP phone system based on the Asterisk PBX.
...
First, you need to download the software from an open source repository like GitHub or SourceForge.
Once you've downloaded the software, install it according to instructions provided by the developers and then run the...

Best Open Source Telephony Software 2026 - SourceForge

Incredible PBX is an open source project that provides all the components you need to build your own **unified communications** solution.
You can deploy Incredible PBX with on-premises hardware including Raspberry Pi, in the cloud on a variety of platforms, or on virtual machine platforms like Virtu...

10 Open Source Call Center Software Options & Better Alternatives


Self-hosted open source PBX software for financial services firm

What is your favorite self hosted VOIP / PBX? (pls don't ...

- **Shops needing a turnkey PBX without the FreeSWITCH learning curve**: FusionPBX wraps FreeSWITCH itself with a web GUI and multi-tenant features, cutting deployment time dramatically.
...
|Name|License|Self-Hosted|Federation|E2E Encryption|Best For|
...
|Asterisk|—|✓|—|—|High-call-volume PBX; mat...

5 Best Open Source FreeSWITCH Alternatives (2026)

Easy to use but advanced IP PBX system, VoIP gateway and conference server.
...
- https://github.com/asterisk/asterisk

Asterisk - Self-hosted software

I built and open-sourced a self-hosted, real-time voice AI stack (STT → LLM → TTS) that answers calls and holds a natural spoken conversation, running **entirely on your own box** — no cloud, no per-minute billing, audio never leaves your infra.
...
**Repo:** GitHub - infinitocloud/nemo-rt-community...

drop-in OpenAI Realtime, runs on your own GPU (open source) - AI

If you decide to go down the path however and want to make a living off of it, I suggest you start learning Asterisk or FreeSWITCH.
FreePBX is a nice and open source software suite built on top of Asterisk with a GUI.

Self hosted voip / phone system

Best open source pbx

Open Source VoIP and PBX Phone Systems

Best Open Source Linux PBX Software 2026

The software PBX code is free to download, but the system is not free to operate.
You still need to pay for the server hardware (or cloud VPS hosting), SIP trunking services for outside calls, and the electricity to run it.
The biggest hidden cost is the IT labor required for maintenance.

Best Open Source PBX Software Guide (2026)

Asterisk PBX - Open Source VOIP IP-PBX Server

6 Best Open-Source PBX Solutions | Global Call Forwarding

Home ⋆ Asterisk

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
|--|--|--|--|
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferenc...

The Best Free and Open-Source PBX Software

The first meaning is a media engine and signaling stack you can self-host: Asterisk and FreeSWITCH are the two foundational projects everyone else builds on.
...
The software is free.
Everything else is not.
...
You're a single business with under 100 extensions, on-premise or self-hosted, and you d...

Open Source PBX Software in 2026: A Practical Buyer's Guide

Open source call center software is free to use, customizable to the nth degree, and backed by a community of developers.
...
Incredible PBX is an open source project that provides all the components you need to build your own **unified communications** solution.
You can deploy Incredible PBX with o...

Best Open Source VoIP Software 2026 - SourceForge

Yeastar P-Series is a phone system hosted in the cloud or self-managed.
...
Deploy flexible and scalable PBX software on your private or public
cloud, ideal for providers and teams seeking deep customization and
cost efficiency.

Self-hosted PBX Phone System for Business

2nd option (and this will probably be the easiest and most secure) if you’re only using VoIP phones from office locations is to use branch office VPNs to connect the two locations, then all you need is to point your phones to the internal IP of the phone system and VPN and routing will take care of ...

free pbx - private cloud - Telecom & VOIP


What is the best open source IP-PBX server for remote and hybrid teams?

Best open source pbx : r/VOIP

If you are a small to medium business that needs a phone system with a web interface and strong community support, start with FreePBX.
...
FreePBX is the best starting point for most organizations, FusionPBX is the right choice for multi-tenant and high-volume deployments, and raw Asterisk or FreeSW...

Best Open Source VoIP and PBX Software

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|3CX|Free for up to 10 users with paid plans available|- Mobile and web apps - Video conferencing - Live chat|Remote and hybrid teams that need a scalable solution|
...
- Best for small remote teams: 3CX
- Best for those in the education/g...

FreePBX | Open source, web-based, IP PBX management tool.

- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols

Open Source VOIP Software & Servers - VoIP-Info.org

FreePBX, developed by Sangoma, is the most popular open-source IP PBX platform available.

The 5 Best PBX Systems for Your Business in 2026

Vonage Voice Api

22 Open-source Free and Open-source VoIP and Sip Servers

Open Source Asterisk PBX Decisions and recommendations

7 Free Open Source PBX Software Solutions - VOIP Solutions

Seeking Advice: Best Secure and Open-Source PBX for Small Business?

Best Open Source Cloud PBX 2025

Best Free Open Source VoIP Software

10 Open Source Call Center Software Options & Better Alternatives

What is the best open source VoIP tech?

VitalPBX - Advanced PBX System


Recommend an open source self-hosted PBX platform with good WebRTC support.

### [PROJECT] RustPBX: Open-Source SIP/WebRTC IP-PBX Written in Rust
RustPBX is a robust SIP IP-PBX developed in Rust, designed to serve as a modern alternative to Asterisk and FreeSWITCH with its API-first framework.
It allows you to manage all routing and media through HTTP/WebSocket rather than t...

Self-hosted WebRTC solutions give you full control over your infrastructure and can significantly reduce per-call costs at scale.
Here are the most widely used open source WebRTC media servers in 2026:
- **Janus** — A lightweight, plugin based WebRTC media server well suited for custom integrations ...

From Open Source Media Servers to CPaaS Solutions

### I built RustPBX: Open-Source SIP/WebRTC IP-PBX Written in Rust
**RustPBX** is a fast SIP IP‑PBX built in Rust that follows a modern, API‑first design.
All routing and media are managed through HTTP/WebSocket rather than static config files, which makes it AI‑compatible, programmable from any lan...

pbx · GitHub Topics

ICTPBX is a carrier-grade, multi-tenant PBX management application for ISPs, ITSPs, and service
providers — built on FreeSWITCH and unified through the ICTCore REST API, run from one modern dashboard.
...
**FreeSWITCH 1.10** Media engine **ICTCore** Unified REST API **Angular 13** Web dashboard **We...

Home | ICTPBX

**MiroTalk P2P** - Free WebRTC, Simple, Secure, Fast Real-Time Video Conferences with support for up to 8k resolution and 60fps.
It's compatible with all major browsers and platforms.
...
- Direct peer-to-peer connections for low-latency communication through WebRTC.
...
MiroTalk P2P is free and ope...

GitHub - miroslavpejic85/mirotalk: 🚀 Self-hosted open-source WebRTC video conferencing platform built on peer-to-peer (P2P) architecture for fast, secure real-time communication with end-to-end privacy.

### InnovateAsterisk / Browser-Phone
A fully featured browser based WebRTC SIP phone for Asterisk
open-source sip webrtc free asterisk voip asterisk-dialplan asterisk-pbx web-sockets video-calls text-chat asterisk-server audio-calls asterisk-webui browser-phone
...
MikoPBX — free open-source PBX for...

Build software better, together

Best open source pbx : r/VOIP - Reddit

OpenVidu is built to be incredibly powerful.
It is based on the best open source WebRTC stacks: **LiveKit** and **mediasoup** . By combining the best of both worlds, OpenVidu provides outstanding **performance**.
...
- **WebRTC**
Achieve ultra-low latency in your videoconference or live-streaming ap...

Self-hosted video conferencing & custom WebRTC - OpenVidu

Janus is an open source, general purpose, WebRTC server designed and developed by Meetecho.

meetecho/janus-gateway: Janus WebRTC Server

Best Open Source PBX Software (2026): Self-Hosted & Asterisk

### MiroTalk – Open-Source WebRTC Video Calls (Self-Hosted, Privacy-Focused)
Introducing MiroTalk, a privacy-centric and open-source platform utilizing WebRTC for real-time communication.
This platform enables you to conduct secure video conferences right in your web browser, offering complete contr...

- [FreeSWITCH](http://freeswitch.org) - Open source multi-protocol, cross-platform and software switch.
- [Asterisk](http://asterisk.org) - PBX framework supporting multiple protocols and platforms.
...
- [Janus](https://janus.conf.meetecho.com) - Lightweight open source, general purpose, WebRTC gat...

Home ⋆ Asterisk

**Jitsi** **Description**: Jitsi is a widely popular open-source WebRTC server that supports both video and voice calling.
It provides an easy-to-use interface, and the server can be self-hosted for full control over your deployment.

Best opensource web RTC server for video calling ...

|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|3CX|Free for up to 10 users with paid plans available|- Mobile and web apps - Video conferencing - Live chat|Remote and hybrid teams that need a scalable solution|
...
Kamailio is an open source SIP server able to handle thousands of call...

The Best Free and Open-Source PBX Software - GetVoIP

Janus is a WebRTC Server developed by Meetecho conceived to be a general purpose one.

Janus WebRTC Server (multistream): About Janus

nuzulul/awesome-webrtc

For video chat, I've used Jitsi, which, when checked today (2021-03-02) has a self hosting guide on their Github repository.
...
You might be interested in NextCloud and it's Talk component.
NextCloud is a collaboration software suite, so it's not exactly a dedicated VOIP service, but with it has we...

What's a good FOSS X-platform self-hosted VOIP program?


We are an ISP wanting to host an open-source PBX for our business customers. What software should we use?

Best open source pbx : r/VOIP

That’s because FreePBX, the world’s most popular open source IP PBX, gives users the tools to build a phone system tailored to their needs.

FreePBX | Open source, web-based, IP PBX management tool.

Best Open Source Linux PBX Software 2026

## Open Source PBX Comparison at a Glance
|Platform|Best For|Multi-Tenant|Web Dashboard|White-Label|Setup Effort|
|--|--|--|--|--|--|
|Asterisk + FreePBX|Single business, on-premise|Workarounds only|FreePBX|Custom work|Medium|
|FreeSWITCH (vanilla)|Custom builds, contact center engines|You build it|...

Open Source PBX Software in 2026: A Practical Buyer’s Guide

The best open source VoIP and PBX software available today includes FreePBX for accessible single-site deployments, FusionPBX for multi-tenant and carrier-grade requirements, and the raw Asterisk and FreeSWITCH engines for organizations that need maximum customization.
...
The decision tree for sele...

Best Open Source VoIP and PBX Software

**Quick Comparison: Top Open Source PBX Platforms**
|**Platform**|**Core Engine**|**Interface (GUI)**|**Difficulty**|**Best For**|
...
|**Asterisk**|Asterisk|No (CLI only)|Expert|Developers building custom apps|
|**FreePBX**|Asterisk|Yes (Web)|Medium|SMBs & Standard Office VoIP|
|**FusionPBX**|FreeS...

Best Open Source PBX Software Guide (2026)

Issabel is an open source IP phone service that comes with add-on **contact center software** that enables you to manage incoming calls, automate outbound call center activity, and benefit from a bespoke Linux-based training program for users.

10 Open Source Call Center Software Options & Better Alternatives

If you're looking for PBX software that you can host on your own server and need to handle 4 to 10 concurrent calls with extensions, along with call recording capabilities, there are several excellent options to consider:
1. **Asterisk**: This is one of the most popular open-source PBX solutions.
It...

Open source best PBX sokution

- Asterisk: Open Source PBX.
Supports IAX, SIP, MGCP, H.323 and other protocols
- CallWeaver: a fork of Asterisk with T.38 termination
- FreeSwitch Open Source PBX and Soft Switch
- OpenPBX: Open Source PBX developed using Perl
- PBX4Linux: ISDN PBX with H.323 GW
- sipwitch: GNU project’s Pure SIP c...

Open Source VOIP Software & Servers - VoIP-Info.org

The top open source PBX providers are:
|**Provider**|**Pricing**|**Key Features**|**Best For**|
...
|Asterisk|Free and Open|- Remote call forwarding - Number porting - SMS|Small companies setting up a cloud based phone system for the first time|
|SIP Foundry|Free and Open|- Video conferencing - IM/C...

The Best Free and Open-Source PBX Software

Asterisk is basically the grand daddy of all open source PBX and VoIP strategies and continues to work as the gold standard.

7 Free Open Source PBX Software Solutions - VOIP Solutions

Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

Home ⋆ Asterisk

Best Open Source PBX Software 2026

**VICIdial** --- The dominant open source contact center platform.
...
The pattern is obvious: if you need outbound contact center functionality --- predictive dialing, campaign management, lead list handling, agent scripting, blended inbound/outbound --- VICIdial is your only real option in the ope...

Open Source Call Center Software: 5 Platforms Compared

Best Windows Free VOIP PABX - Software & Applications

MikoPBX

6 Best Open-Source PBX Solutions | Global Call Forwarding

# Open Source Cloud PBX Software (2025)
...
3 software options

Best Open Source Cloud PBX 2025

Seeking Advice: Best Secure and Open-Source PBX for Small Business?

Best Top 10 FREE PBX Software Open Source Phone Systems