Linphone is an easy to use, handy internet phone or Voice Over IP phone (VoIP).
This tool will enable you to communicate freely with people over the internet, with voice, video, and text instant messaging.
Linphone also complies to the SIP protocol, an open standart for internet telephony. The application should be able to interoperate with most SIP phones and proxies.
If you subscribe a VoIP to PSTN (=classic telephony) account to a telecom provider, you can reach everyone that has a "classic" phone line. However those calls are not free since PSTN networks are costly.
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 any webcam with a V4L or V4L2 driver under linux and Directshow driver on windows
Text instant messaging and presence (using the SIMPLE standart)
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
Nat friendly: guesses NAT address for SIP messages, uses STUN for RTP streams
Linux: ALSA, OSS, PulseAudio
MacOSX: audio queues
Android sound system
Efficient bandwidth management: the bandwidth limitations are signaled using SDP (b=AS...), resulting in audio and video session established with bitrates that fits the user's network capabilities.
Can use plugins: to add new codecs, or new core functionalities, such as remote directory search of sip addresses for example.
Compliant with open standarts: see the full list there.
Linphone is an easy to use, handy internet phone or Voice Over IP phone (VoIP). This tool will enable you to communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone also complies to the SIP protocol, an open ... phones and proxies. If you subscribe a VoIP to PSTN (=classic telephony) account to a telecom .... Free download of Linphone for Mac OS X 3.5.0
Mizu VoIP tunnel is a special VoIP server software whose task is to encrypt all communication from/to the clients and to forward the calls ... and countries like Dubai or Oman are filtering VoIP or degrading the media in order to force a consumer to use their own VoIP or traditional PSTN services. Using Mizutech built-in encryption .... Free download of Mizu VoIP Tunnel 4.6.2
Voip PC phone does not rely on third-party vendors ... a headset and microphone to make a call. Voip PC Phone works only on LAN, DSL, Cable, or 3 / 4G broadband connections. The minimum bandwidth required is 64 Kbps (continuous). How it works: For LAN and Wi-Fi connections, simply enter .... Free download of SSuite VOIP Caller Extreme 2.2
vEmotion is a perfect VoIP audio assistant. It flawlessly records VoIP calls into MP3 or WAV files with data ... password protected. Also it adds life to your VoIP voice conversations. Enjoyable things include background music, voice ... mouth. The program is compatible with nearly all VoIP clients, among which Skype, ICQ, Msn/WLM, Gtalk, AIM/AIM .... Free download of vEmotion for VoIP 6.4
ABTO Software's VoIP SIP SDK allows quick VoIP softphone app development. Also you can use it when you need to add VoIP features to your software. VoIP SIP SDK for Android provides: *Android 2.x/4.x support ... with most sip clients including softphones based on VoIP SIP SDK for Windows. Available codecs: *G.711-ALaw/muLaw *G.729 .... Free download of ABTO Software VoIP SIP SDK for Android 2.1
Samsung Apps : From PC to Mobile. Free download of Samsung Kies 126.96.36.19914_5
Enhanced Android Smart Device user experience. Free download of HiSuite 188.8.131.52
The mobile phone and sync tool for your mobile/cell phone, handset. Free download of Mobile Master 8.9.3
A free H.323 gatekeeper to build VoIP networks. Free download of GNU Gatekeeper (GnuGk) 3.5