CALL HOLD SOFTPHONE EXAMPLE 9.2.0
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ABOUT CALL HOLD SOFTPHONE EXAMPLE
Ozeki C# VoIP softphone example shows how to implement call hold function. The sample program is based on Ozeki VoIP SIP .NET SDK. It has basic softphone functions that are extended with call hold. The GUI changes according to the hold process. The call state handling needs some other extra actions in this softphone example. It can handle DTMF signals and it is customizable with further functions company logo or brand name, supports multiple calls. It delivers crystal clear sound due to the extended codec support. It has all the functions for establishing phone calls like make/receive call, sending/receiving DTMF signals to navigate in IVR systems and display call events on GUI. Ozeki VoIP SIP SDK has been developed to ensure excellent sound quality. For this purpose various codecs are supported: G.711 aLaw/uLaw, G.729, iLBC, GSM, G.722, SPEEX, SPEEX-WB, L16, G723. G726-16, G726-24, G726-32, G726-40, G728. It is compatible with almost all PBX systems like Asterisk PBX, Cisco UCM, 3CX Phone System, Kamailio PBX, etc. Ozeki SIP SDK also works with almost all VoIP service providers (Skype Connect, Gafachi, Callcentric, SureVoIP, VoIPtalk, etc.). Tools: SIP protocol implementation, RTP implementation, RTCP implementation, Audio device support (mic, speaker), Audio encoding / decoding (audio codecs), Voice quality improvement tools (AEC, AVG, NR, Jitter buffer), Video device support (camera and playback), Video encoding / decoding (video codecs), Implemented network communication protocols: UDP, TCP, Implemented firewall passthrough (STUN, TURN), Implemented file formats (mp3, wav, avi). Products: Softphone, VoIP client applications: Dialers, Call assistant, Call center clients, Call center servers, PBX systems, IVR systems, Webphone solutions, Conferencing systems, Voice recording systems, VoIP tunneling systems, Security monitoring systems, Mobile communication systems. Capacity: multiple lines and calls are ensured at once. Royalty free licensing is also provided