VoIP SIP SDK for Windows 4.9.7
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ABOUT VoIP SIP SDK for Windows
License Details No per seat licensing One time payment Standard (voice only), Video, Multiline (up to 64 media lines), Video conference versions Protocols Support SIP RTP SDP TCP STUN ICE Development Features ActiveX, COM, and plain dll files support of SIP DLL SDK (via native dll interface) NAT (Network Address Translation) support Encryption on the basis of sRTP, DLS, and DTLS DTMF (Dual Tone Multi Frequency) support SIP Authentication Codecs management Basic samples (C#, C++, VB.NET, VB 6.0, and Delphi) Custom samples (multiple SIP accounts, IVR, presence, and voice mail) Log file on/off setting End User Features All versions of Windows OS, including Windows 8 Support of all kinds of Internet connections SIP Registrar support (compatibility with most of SIP servers including Asterisk) Works under firewall Multiple sip accounts registration Multiline support Multi-party voice conference Video call support IM interface Selecting of media input and output devices Custom ringtone support Configuration saving and loading Conversation Specific Features Calls operations: - Hold/Retrieve Call - Forward Call (Blind Call Transfer) - Transfer Call (Attended Transfer) Noise reduction (supression) - AGC (Auto gain controller) support - Adaptive silence detection - Adaptive jitter buffer Software volume control (including Mute Sound) Playing file into conversation Recording conversation into file Redirection of calls to other phone lines Call history and address book ready Available Codecs H.263 H.264 G.711 (ALaw, muLaw) G.726 (16k 24k 32k 40k) G.729A G.723 iLBC LPC-10 Speex (Narrow, Wide) L16 RFC4733 DTMF tones GSM