Psi is an instant messaging application for Windows, Linux, and Mac OS X that connects to the free, open XMPP network. Localiz ...

Ring positions itself as a potential free Skype replacement Open Source and cross-platform. Ring gives you a full control over ...

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the int ...

Open source Jabber (XMPP) client with multi-account support, clean and simple interface. Being both free (as in freedom!) and ...

MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or ...