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14. A Review of SIPconnect 2.0

Authored by Andrew Hutton, Unify, and Presented by Dr. Alan Johnston.

The SIPconnect 2.0 Task Group has produced a SIP Forum SIPconnect 2.0 Technical Recommendation that defines a common set of implementation rules for implementers who desire to interface an IP PBX with a SIP-enabled service provider. The recommendation specifies which standards must be supported, provides precise guidance in the areas where the standards leave multiple options, supplements functionality gaps in existing protocols, and identifies a baseline set of features that should be common to an IP PBX to service provider interface.

The work takes into account of the role SBC’s have on both the enterprise IP-PBX side and the service provider side. At a high level, the interface to the service provider utilizes a combination of SIP signaling and media transport using RTP/SRTP. The interface to end-users of the IP PBX can be SIP or any other protocol capable of establishing a voice session (such as WebRTC, H.323, directly connected analog “black phone”, etc.)