Q-municate

The open-source cross-platform video calling and instant messaging app from QuickBlox

3CX Phone System

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

Acrobits Softphone, an app for entry into the world of SIP.

CSipSimple is a SIP application for android devices.

Chatzy is the provider of free and private chat rooms.

XMPP client designed with ease of use and security in mind

Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for…

Homer is a free cross-platform SIP softphone with video support.

Open-source video calling and chat platform.

Get the latest, headlines, breaking, regional news fast.

PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).

Free and open-source SIP/VoIP Client

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

Telephone is a VoIP program which allows you to make phone calls over the internet.

Private & Secure Messenger

Open source Jabber (XMPP) client with multi-account support, clean and simple interface.

Desktop client for Google Hangouts

YateClient is an Instant Messenger and a SoftPhone.

Cross-platform VoIP softphone dialer for SIP and IAX systems