ABTO Software offers IVR SIP SDK – customizable interactive voice response software solution that supports multiple lines and all features of our VoIP SIP SDK:
- Support of SIP, RTP, and SDP
- STUN and other IETF standards (compatible with SER, OpenSER and Asterisk)
- All versions of Windows OS
- Multiple sip accounts registration
- IVR, presence, voice mail samples
- ICE support
- Support of SIP, RTP, and SDP
- STUN and other IETF standards (compatible with SER, OpenSER and Asterisk)
- VoIP SDK ActiveX, COM, and plain dll files support
- SIP Registrar (SIP server) support
- Encryption on the basis of sRTP, DLS, and DTLS
You can find a full list of features here.