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ITU-T Q.1912.5 (01/2018)

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Interworking between session initiation protocol (SIP) and bearer independent call control protocol or ISDN user part
Recommendation ITU-T Q.1912.5 defines the signalling interworking between the Bearer Independent Call Control (BICC) or ISDN User Part (ISUP) protocols and SIP in order to support services that can be commonly supported by BICC or ISUP and SIP-based network domains. It includes assured early dialogue, end-to-end support for ISDN user equipment, support of number portability and support interworking of supplementary services.
Citation: https://handle.itu.int/11.1002/1000/13481
Series title: Q series: Switching and signalling, and associated measurements and tests
  Q.1900-Q.1999: Specifications of signalling related to Bearer Independent Call Control (BICC)
Approval date: 2018-01-13
Provisional name:Q.1912.sip-intw
Approval process:AAP
Status: In force
Maintenance responsibility: ITU-T Study Group 11
Further details: Patent statement(s)
Development history