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Quick facts about VoIP SIP SDK:
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- Multiple lines explicit selection!
- Conferencing!
- Dynamically loadable codecs
- SIP Proxy authentication
- Multi-party voice conference
- Registrar support
- Play wav files into conversation
- Record conversation into file
- Hold/Retrieve call
- Forward Call (Blind Call Transfer)
- Transfer Call (Attended Transfer)
- Mute Sound
- VPN support
- Authorization Id
- Noise reduction
- Auto gain
- Jitter buffer parameters
- Samples on Delphi, C#, VB, VB.NET, C++ 2005, C++ 6.0, HTML (SIP ActiveX)
- Windowless samples on C++ and .NET
- DTMF
- Adaptive silence detection
- Adaptive jitter buffer
- STUN support
- Comes as ActiveX control and as DLL only version
- .Net COM wrapper version
- Retrieving external IP addres from STUN server
- IM interface
- Codec disabling
- Playback of different formats of WAV files
- Software volume control
- Caller-id and user-agent customization
- SDP updates
- Fax support
- Friendly to NAT and other firewalls
- Narrowband, wideband voice codecs
- Packet Loss Concealment
- Royalty free licensing
- No Yearly/Monthly fee
- Free product updates/bug fixes/hot patches
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Available codecs: |
- G.711-ALaw
- G.711-uLaw
- G.726 (16k 24k 32k 40k)
- G.729
- G.729A
- iLBC
- LPC-10
- Speex (Narrow, Wide)
- g723.1
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