Kamailio Alternatives & Competitors

An open source telephony switching and private branch exchange service for Linux.

Key Asterisk features:

Open Source Highly Customizable Large Community Wide Range of Features

Open Source

FreeSWITCH is an open-source media application designed to support popular protools such as SIP and WebRTC and provides a platform to develop voice and video applications.

Key FreeSWITCH features:

Flexibility Scalability Open Source Cross-Platform

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Key VoIPstudio features:

Call Recording Call Forward Call Analytics and Reporting Call Conferencing

Try for free paid Free Trial $4.99 / Monthly (User)

FusionPBX is an open source FreeSWITCH GUI.

Key FusionPBX features:

Feature-Rich Open-Source Cost-Effective Scalability

Open Source

The UCaaS Platform Built for MSPs​.

Key Wazo.io features:

Open Source Unified Communication Scalability Integration Capabilities

FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).

Key freepbx features:

Open Source Comprehensive Features Community Support Scalability

Open Source

XiVO, première solution de téléphonie d'entreprise ToIP Open Source. TPE/PME Grande Entreprise / Centre de contact / Secteur Public. Contact: 04 37 49 78 10.

Key XiVO features:

Open Source Advanced Telephony Features Scalability Integration Capabilities

Social & Communications and Development.

Key miniSIPServer features:

Ease of Use Feature-Rich Flexible and Scalable Cross-Platform Support

Your Open Source Solution For Unified Comunnications And More….

Key Issabel features:

Open Source Comprehensive Feature Set Community Support Cost-Effective

SIP proxy server implementation compliant to RFC3261, written in C++11 started in 2011.

Key Flexisip features:

Open Source Cross-Platform Compatibility Rich Feature Set Integrated with Linphone

VoipSwitch provides complete VoIP and unified communications solutions.

Key VoipSwitch features:

Comprehensive Solution Scalability Customizability Integration Capabilities

A SIP based implementation of a PBX / unified communications system.

Key sipXecs features:

Open Source Scalability Interoperability Rich Feature Set

Incredible PBX is a secure and feature-rich implementation of the Asterisk® PBX.

Key The Incredible PBX features:

Cost Effectiveness Feature-Rich Flexibility Community Support

VitalPBX is a full-feature PBX (phone system) based on Linux and Asterisk.

Key VitalPBX features:

Comprehensive Features Scalability User-Friendly Interface Integration Capabilities