Google Voice and Video Chat
With this plugin by Google, you can now use voice and video capabilities in your Gmail, iGoogle and orkut chat. It lets you have an actual conversation with someone, or even chat face to face over video.
Jitsi
Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports prot ...
Skype
Skype is the most popular free voice-over IP and instant messaging service globally. It allows users to text, video and voice ...
Phoner
Softphone for VoIP, CAPI und TAPI. This application enables voice connections to landline, cellular network and VoIP. Phoner c ...
LINE
LINE is a Japanese proprietary application for instant messaging on smartphones and PCs. Line users exchange text messages, gr ...
Tango
Tango allows you to easily connect with friends & family or make new friends. Make video & voice calls, send text mess ...
Hangouts
Hangouts is a messaging app that lets you send and receive messages, photos and more, and even start free video and voice call ...
viber
3CX Phone System
3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such as Google Nexus, Sony Xperia ...
FaceTime
FaceTime is a video calling software feature developed by Apple for the iOS and Mac OS. FaceTime makes it possible to talk, sm ...
x-lite
Rocket.Chat
Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. It is a great solution for co ...
loudtalks
Trillian
Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized ...
Nimbuzz
Nimbuzz offers limited availablility free calls and limited availability free text messaging for users via 3G and WiFi. Calls ...
MicroSIP
MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or ...