SIP protocol¶

• Table of contents
• SIP protocol
  • Supported protocols
  • Additionally

Supported protocols¶

• SIP v2
• SIP over UDP
• SIP over TCP
• SIP over TLS
• SRTP
• T.38
• SIP INFO DTMF (RFC 2976)
• RFC 3261 (ACK, BYE, CANCEL, INVITE, OPTIONS, REGISTER)
• RFC 3265 (SUBSCRIBE, NOTIFY)
• RFC 3311 (UPDATE)
• RFC 3515 (REFER)
• RE-INVITE support

Additionally¶

• registration: inbound and outbound.
  Configurable timeouts and number of attempts;
• support for devices under NAT;
• support for system deployment under NAT;
• calls hangup by RTP timeout;
• RTP bridging modes: direct (aka DirectRTP or OpenRTP) , proxy, translation, passing through jitter buffer (when bridged with physical channels);
• video support;
• manipulation of ToS of frames

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