2. SIP messages
Due to SIP's client-server orientation, the messages exchanged are either requests or responses. In both cases, the messages are text-based (like HTTP messages on the World Wide Web), which essentially makes the protocol easier to implement and more extensible.
2.1 Requests
The current version of SIP (version 2.0,
INVITE: set-up request, inviting a user (human or non-human) to participate in a communication session. The sender of this request indicates the types of media he wishes to and can receive, generally through an SDP (Session...
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SIP messages
How a SIP system works
References
- (1) - HANDLEY (M.), CROWCROFT (J.), BORMANN (C.), OTT (J.) - The Internet Multimedia Conferencing Architecture - . Internet Draft draft-ietf-mmusic-confarch-03.txt (expiration janvier 2001).
- (2) - HANDLEY (M.), SCHULTZRINNE (H.), SCHOOLER (E.), ROSENBERG (J.) - SIP : Session Initiation Protocol - ....
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