This section introduces the approach to use the SIP signaling mechanism with WebRTC. Like any other VoIP protocol, SIP also provides the signaling framework before setting up an actual media path. However, the foundation of open standard and industry-adopted signaling protocol such as SIP is recommended, as it provides the first and most crucial step to a strong, scalable architecture.
As we already know, SIP is a signaling protocol that is used to establish an RTP between two endpoints.
As per the official document, RFC 3261, SIP is an application-layer control protocol that can establish, modify, and terminate multimedia sessions (conferences) such as Internet telephony calls.
The SIP ...