Zrtp Softwares and Apps

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Jitsi

Jitsi

Open Source

Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.

Business & Commerce Development Office & Productivity OS & Utilities Social & Communications
Signal

Signal

Open Source

Signal is the most scalable encryption tool.

Security & Privacy Social & Communications
Ring

Ring

Open Source

Ring (SFLphone) is an open-source SIP-compatible softphone and instant messenger for Linux, Microsoft Windows, OS X and Android.

Social & Communications
Linphone

Linphone

Open Source

Linphone is a free voice over IP (VoIP) service and SIP client.

Social & Communications
CSipSimple

CSipSimple

Open Source

CSipSimple is a Voice over Internet Protocol (VoIP) application for Google Android operating system using the Session Initiation Protocol (SIP).

Social & Communications
FreeSWITCH

FreeSWITCH

Open Source

FreeSWITCH is a free and open source application server for real-time communication, WebRTC, telecommunications, video and Voice over Internet Protocol (VoIP).