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Telephone reciever in a "chat bubble" with outgoing "waves"
Original author(s) Belledonne Communications
Developer(s) Linphone
Stable release v3.7 (v2.1 for Android & iOS, v1.0.1 for Blackberry) / 20 February 2014; 5 months ago (2014-02-20)[1]
Written in C
Operating system GNU/Linux, FreeBSD,[2] Windows, Mac OS, iPhone, Android, BlackBerry OS
Size 8–17 MB
Available in Multilingual[clarification needed]
Type Voice over IP, instant messaging, videoconferencing
License GNU GPL version 2[3]

Linphone is a free VoIP application available on PCs running Linux, BSD operating systems such as FreeBSD,[2] Windows, or Mac OS X, and mobile phones running BlackBerry OS, Android,[4] Windows Phone,[5] or iOS.[6] It uses the Session Initiation Protocol (SIP) for communication and is licensed under the GNU General Public License (GPL). It supports IPv6 as well as encryption via ZRTP and Transport Layer Security (TLS). Linphone can also be used behind network address translator (NAT), meaning it can run behind home routers. Linphone uses GTK+ for GUI and on Linux it can be also run as a console-mode application. It is compatible with telephony by using an Internet telephony service provider (ITSP).

Linphone running on HTC Desire

Audio codecs[edit]

Audio codec support: Speex (narrow band and wideband), G.711 (µ-law, A-law), GSM, Opus, and iLBC (through an optional plugin)

Video codecs[edit]

Video codec support: H263-1998, MPEG-4, Theora, VP8 and H.264 (with a plugin based on x264), with resolutions from QCIF(176×144) to SVGA(800×600) provided that network bandwidth and CPU power are sufficient.[7]

See also[edit]


External Links[edit]