Professional Standard - Post and Telecommunication
Latest
YD/T 1522.1-2006
Scope
This part specifies the technical requirements for the session initialization protocol, including SIP messages, basic user agent behavior, request cancellation, query capabilities, dialogue, session initiation process, session change process, proxy server behavior, SIP transaction layer, transport, common message components, Header fields, response codes, HTTP authentication usage, S/MIME, SIP protocol extension BNF, security, IANA considerations and other technical requirements. This section applies to terminal equipment or networks that support the SIP protocol.
YD/T 1522.1-2006 history
2006YD/T 1522.1-2006 Technical Requirments for Session Initiation Protocol. Part 1: Basic Session Initiation Protocol