Twinkle softphone
Twinkle is a soft phone for your voice over IP communcations using the SIP protocol. You can use it for direct IP phone to IP phone communication or in a network using a SIP proxy to route your calls.
Jitsi
Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports prot ...
Silent Phone
Silent Phone – Secure Encrypted Video & Voice Mobile Phone Calls You now have the ability to have secure encrypted phone c ...
Signal
TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees ...
QuteCom
QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The fl ...
Zoiper
Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to w ...
Firefly
Firefly softphone is the easiest way to try Freshtel's great service from the comfort of your PC. Available completely free it ...
CallProtector
Encrypted secure Calls with CallProtector!
App available on iOS & Android With CallProtector you can call others in a secu ...
yakyak
KeeperChat
KeeperChat - The leading secure messaging app. • Private vault for messages, photos and videos • Private, encrypted media gall ...
Linphone
Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the int ...
MicroSIP
MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or ...