Ozeki Phone Systems

Ozeki Phone System XE is a Software PBX telephony platform for Windows.

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.

Cloud Telephony delivers automated telephone applications to any phone, any place, anytime.

FusionPBX is an open source FreeSWITCH GUI.

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

spreed is the worldwide Unified Web Conferencing service offering integrated web- and telephone conferencing.

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

Description: Thirdlane PBX - VoIP Phone System and Unified Communications Solution for Small Business to Enterprise. Phone ☎ +1 415 / 261-6600

Vodia Phone app is a free add-on for your Vodia PBX that lets you connect to your account on your…

VoipSwitch provides complete VoIP and unified communications solutions.

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

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.