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These are know standards in compliance with the SIP inter-working gateway functionality on the Huawei SBC. | Category | Name | | IETF | RFC 2976: The SIP INFO method | | RFC 3204: MIME media types for ISUP and QSIG Objects | | RFC 3261: SIP: Session Initiation Protocol | | RFC 3262: Reliability Of Provisional Responses in the SIP | | RFC 3263: SIP: Locating SIP Servers | | RFC 3264: An Offer/Answer Model with SDP | | RFC 3265: SIP - Specific Event Notification | | RFC 3311: The SIP UPDATE method | | RFC 3312: Integration of Resource Management and SIP | | RFC 3325: Private Extensions to the SIP for Asserted Identity within Trusted Networks | | RFC 3326: The Reason Header Field for the SIP | | RFC 3455: Private Header (P-Header) Extensions to the SIP for the 3rd-Generation Partnership Project (3GPP) | | RFC 3515: The SIP Refer Method | | RFC 3581: An Extension to the SIP for Symmetric Response Routing | | RFC 3891: The SIP "Replaces" Header | | RFC 3892: The SIP Referred-By Mechanism | | RFC 3966: The tel URI for Telephone Numbers | | RFC 4028: Session Timers in the SIP | | ITUT | Q.1912.5: Interworking between SIP and Bearer Independent Call Control Protocol(BICC) or ISDN User Part(ISUP) | |