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Open source software for VOIP

Description

Linphone is an open source SIP Phone, available on mobile and desktop environments (iOS, Android, Windows Phone 8, GNU/Linux, Windows Desktop, MAC OSX) and on web browsers.

Linphone has inside a separation between the user interfaces and the core engine, allowing to create various kinds of user interface on top of the same functionalities.

  • The user interface frontends:
    • Gtk+ interface for windows, mac and GNU/Linux
    • The console interface (linphonec, linphonecsh)
    • The iPhone application built in objective C
    • The Android application running in java
    • The Windows Phone application written in C#
  • Liblinphone, the core engine: this is the library that implements all the functionalities of Linphone.
    Liblinphone is a powerful SIP VoIP video SDK that anyone can use to add audio or video call capabilities to an application. It provides a high level api to initiate, receive, terminate audio & video calls.
  • Liblinphone relies on the following software components:
    • Mediastreamer2, a powerful multimedia SDK to make audio/video streaming and processing.
    • oRTP, a simple RTP library.
    • belle-sip the SIP library.

    Liblinphone and all its dependencies are written in pure C

Architecture