Starfish PBX

Starfish PBX aims to be an open source alternative to Digium’s Switchvox.

3CX Phone System

3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such…

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

AsteriskNOW is the fastest way to get started building custom telephony solutions with Asterisk.

Switch is a cloud-based phone system built for Google Apps users.

FusionPBX is an open source FreeSWITCH GUI.

Your Open Source Solution For Unified Comunnications And More…

Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under…

The most advanced interface for managing Asterisk PBX with Multitenant and Realtime capabilities

Amazing video threads with friends

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

VoipSwitch provides complete VoIP and unified communications solutions.

Wazo is a unified communications platform based on Asterisk and focused on extensibility.

Desktop client for Google Hangouts

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

OpenSIPS (Open SIP Server) is a mature Open Source implementation of a SIP server.