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Linphone is an internet phone or Voice Over IP phone (VoIP).
•With linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging.
•Linphone makes use of the SIP protocol, an open standart for internet telephony. You can use Linphone with your favorite SIP VoIP operator.
•linphone is free-software (or open-source), you can download and redistribute it freely.
•Linphone is available for PCs (linux, windows), MacOSX and for mobile phones: Android, iPhone.
•SIP user agent compliant with RFC3261
•Decoupling between liblinphone engine and graphical UI: allows to integrate linphone functionnalities in any graphical application.
•Audio with the following codecs: speex (narrow band and wideband), G711 (ulaw,alaw), GSM. Through additionals plugins, it also supports AMR and iLBC.
•Video with codecs: H263, H263-1998, MPEG4, theora and H264 (thanks to a plugin based on x264), with resolutions from QCIF(176x144) to SVGA(800x600) provided that network bandwidth and cpu power are sufficient.
•Supports IPv6
•Supports any webcam with a V4L or V4L2 driver under linux and Directshow driver on windows
•Text instant messaging and presence (using the SIMPLE standart)
•Addressbook
•DTMF (telephone tones) support using SIP INFO or RFC2833
•Understands SIP ENUMS (sip phone numbers using the naptr DNS service, without proxy)
•Echo cancelation using the great speex echo canceler
•Multiple SIP proxy support: registrar, proxies, outbound proxies
•Digest authentication
•Nat friendly: guesses NAT address for SIP messages, uses STUN for RTP streams
•Sound backends:
◦Linux: ALSA, OSS, PulseAudio
◦Windows: waveapi
◦MacOSX: audio queues
◦iPhone: AudioUnit
◦Android sound system
•With linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging.
•Linphone makes use of the SIP protocol, an open standart for internet telephony. You can use Linphone with your favorite SIP VoIP operator.
•linphone is free-software (or open-source), you can download and redistribute it freely.
•Linphone is available for PCs (linux, windows), MacOSX and for mobile phones: Android, iPhone.
•SIP user agent compliant with RFC3261
•Decoupling between liblinphone engine and graphical UI: allows to integrate linphone functionnalities in any graphical application.
•Audio with the following codecs: speex (narrow band and wideband), G711 (ulaw,alaw), GSM. Through additionals plugins, it also supports AMR and iLBC.
•Video with codecs: H263, H263-1998, MPEG4, theora and H264 (thanks to a plugin based on x264), with resolutions from QCIF(176x144) to SVGA(800x600) provided that network bandwidth and cpu power are sufficient.
•Supports IPv6
•Supports any webcam with a V4L or V4L2 driver under linux and Directshow driver on windows
•Text instant messaging and presence (using the SIMPLE standart)
•Addressbook
•DTMF (telephone tones) support using SIP INFO or RFC2833
•Understands SIP ENUMS (sip phone numbers using the naptr DNS service, without proxy)
•Echo cancelation using the great speex echo canceler
•Multiple SIP proxy support: registrar, proxies, outbound proxies
•Digest authentication
•Nat friendly: guesses NAT address for SIP messages, uses STUN for RTP streams
•Sound backends:
◦Linux: ALSA, OSS, PulseAudio
◦Windows: waveapi
◦MacOSX: audio queues
◦iPhone: AudioUnit
◦Android sound system
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