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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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Q Suppl. 1 (10/1995)
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Signalling System No.7 testing and planning tools
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In force
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-
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here
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here
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Q Suppl. 2 (09/1997)
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Intelligent network user's guide: Supplement for IN CS-1
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In force
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here
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here
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here
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Q Suppl. 3 (05/1998)
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Number portability – Scope and capability set 1 architecture
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In force
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here
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here
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here
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Q Suppl. 4 (05/1998)
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Number portability – Capability set 1 requirements for service provider portability (All call query and Onward routing)
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In force
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here
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here
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here
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Q Suppl. 5 (03/1999)
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Number portability – Capability set 2 requirements for service provider portabilty (Query on release and Dropback)
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In force
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here
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here
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here
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Q Suppl. 7 (03/1999)
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Technical Report TRQ.2001: General aspects for the development of unified signalling requirements
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In force
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here
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here
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here
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Q Suppl. 8 (03/1999)
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Technical Report TRQ.2400: Transport control signalling requirements – Signalling requirements for AAL Type 2 link control capability set 1
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In force
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here
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here
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here
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Q Suppl. 9 (03/2004)
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Technical Report TRQ.2000: Roadmap for the TRQ.2xxx-series Technical Reports
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In force
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here
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here
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here
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Q Suppl. 10 (12/1999)
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Technical Report TRQ.2002: Information flow elements
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In force
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here
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here
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here
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Q Suppl. 11 (12/1999)
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Technical Report TRQ.2010: B-ISDN signalling interworking requirements
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In force
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here
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here
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here
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Q Suppl. 12 (12/1999)
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Technical Report TRQ.2100: Coordinated call control and bearer control signalling requirements – Root-party coordinated call and bearer control
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In force
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here
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here
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here
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Q Suppl. 13 (12/1999)
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Technical Report TRQ.2110: Coordinated call control and bearer control signalling requirements – Leaf-party coordinated call and bearer control
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In force
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here
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here
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here
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Q Suppl. 14 (12/1999)
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Technical Report TRQ.2120: Coordinated call control and bearer control signalling requirements – Third-party coordinated call and bearer control
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In force
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here
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here
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here
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Q Suppl. 15 (12/1999)
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Technical Report TRQ.2130: Coordinated call control and bearer control signalling requirements for leaf initiated join service
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In force
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here
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here
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here
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Q Suppl. 16 (12/1999)
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Technical Report TRQ.2140: Signalling requirements for the support of narrowband services via broadband transport technologies
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In force
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here
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here
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here
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Q Suppl. 17 (12/1999)
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Technical Report TRQ.2200: Call control signalling requirements – Party call control
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In force
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here
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here
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here
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Q Suppl. 18 (12/1999)
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Technical Report TRQ.2230: Call control signalling requirements – Join call service
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In force
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here
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here
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here
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Q Suppl. 19 (12/1999)
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Technical Report TRQ.2300: Bearer control signalling requirements – Root-party bearer control
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In force
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here
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here
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here
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Q Suppl. 20 (12/1999)
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Technical Report TRQ.2310: Bearer control signalling requirements – Leaf-party bearer control
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In force
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here
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here
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here
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Q Suppl. 21 (12/1999)
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Technical Report TRQ.2320: Bearer control signalling requirements – Third-party bearer control
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In force
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here
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here
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here
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Q Suppl. 22 (12/1999)
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Technical Report TRQ.3000: Operation of the bearer independant call control (BICC) protocol with digital subscriber signalling system No. 2 (DSS2)
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In force
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here
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here
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here
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Q Suppl. 24 (12/1999)
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Technical Report TRQ.3020: Operation of the bearer independant call control (BICC) protocol with broadband integrated services digital network user part (B-ISUP) for AAL Type 1 adaptation
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In force
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here
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here
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here
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Q Suppl. 26 (12/1999)
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Broadband integrated services digital network (B-ISDN) – Digital subscriber signalling system No. 2 (DSS2) and signalling system No. 7 (B-ISUP) – Support of services over IP-based networks
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In force
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here
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here
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here
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Q Suppl. 27 (12/1999)
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Technical Report – Overview of Signalling and Protocol Framework for an Emerging Environment (SPFEE)
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In force
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here
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here
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here
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Q Suppl. 28 (12/1999)
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Technical Report: Signalling and protocol framework for an emerging environment (SPFEE) – Specifications for service access
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In force
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here
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here
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here
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Q Suppl. 29 (12/1999)
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Service Modelling: Evolution to the use of object oriented techniques
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In force
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here
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here
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here
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Q Suppl. 31 (12/2000)
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Technical Report TRQ.2141.0: Signalling requirements for the support of narrow-band services over broadband transport technologies – Capability set 2 (CS-2)
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In force
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here
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here
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here
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Q Suppl. 32 (11/2002)
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Technical Report TRQ.2141.1: Signalling requirements for the support of narrowband services via broadband transport technologies – CS-2 signalling flows
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In force
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here
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here
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here
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Q Suppl. 33 (12/2000)
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Technical Report TRQ.2401: Transport control signalling requirements – Signalling requirements for AAL type 2 link control capability set 2
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In force
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here
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here
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here
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Q Suppl. 34 (12/2000)
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Technical Report TRQ.2410: Signalling Requirements Capability Set 1 for the support of IP Bearer Control in BICC networks
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In force
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here
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here
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here
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Q Suppl. 35 (12/2000)
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Technical Report TRQ.2500: Signalling Requirements for the support of the call bearer control interface (CS-1)
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In force
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here
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here
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here
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Q Suppl. 36 (12/2000)
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Technical Report TRQ.3030: Operation of the bearer independent call control (BICC) protocol (CS-2) with IP bearer control protocol (IPBCP)
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In force
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here
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here
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here
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Q Suppl. 37 (07/2006)
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DSS1 and DSS2 messages and information element identifiers
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In force
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here
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here
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here
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Q Suppl. 38 (05/2001)
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Technical Report TRQ.2600: BICC signalling transport requirements – Capability set 1
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In force
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here
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here
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here
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Q Suppl. 39 (03/2002)
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Technical Report TRQ.2700: Requirements for signalling in access networks that support BICC
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In force
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here
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here
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here
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Q Suppl. 40 (11/2002)
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Technical Report: Reference document on API/object interface between network control and application layer
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In force
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here
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here
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here
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Q Suppl. 41 (11/2002)
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Technical Report TRQ.2003: Roadmap to the BICC protocol Recommendations, BICC interworking Recommendations, and BICC requirement Supplements
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In force
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here
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here
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here
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Q Suppl. 42 (09/2003)
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Technical Report TRQ.2402: Transport control signalling requirements – Signalling requirements for AAL type 2 link control Capability Set 3
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In force
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here
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here
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here
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Q Suppl. 43 (09/2003)
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Technical Report TRQ.2415: Transport control signalling requirements – Signalling requirements for IP connection control in radio access networks Capability Set 1
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In force
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here
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here
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here
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Q Suppl. 44 (09/2003)
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Technical Report TRQ.2800: Transport control signalling requirements – Signalling requirements for AAL type 2 to IP interworking Capability Set 1
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In force
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here
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here
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here
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Q Suppl. 45 (09/2003)
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Technical Report TRQ.2815: Requirements for interworking BICC/ISUP network with originating/destination networks based on Session Initiation Protocol and Session Description Protocol
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In force
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here
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here
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here
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Q Suppl. 46 (09/2003)
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Technical Report TRQ.2830: ATM-MPLS network interworking signalling requirements
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In force
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here
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here
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here
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Q Suppl. 47 (11/2003)
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Emergency services for IMT-2000 networks – Requirements for harmonization and convergence
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In force
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here
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here
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here
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Q Suppl. 48 (03/2004)
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Guideline document for specifying API/object interface between network control and application layer
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In force
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here
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here
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here
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Q Suppl. 49 (02/2014)
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Signalling requirements to support IP telephony
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In force
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here
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here
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here
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Q Suppl. 50 (03/2004)
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Technical Report TRQ.2145: Requirements for a Narrow-band Signalling Syntax (NSS)
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In force
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here
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here
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here
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Q Suppl. 51 (12/2004)
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Signalling requirements for IP-QoS
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In force
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here
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here
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here
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Q Suppl. 52 (12/2004)
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NNI mobility management requirements for systems beyond IMT-2000
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In force
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here
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here
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here
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Q Suppl. 53 (09/2005)
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Signalling requirements to support the International Emergency Preference Scheme (IEPS)
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In force
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here
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here
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here
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Q Suppl. 54 (04/2007)
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Signalling requirements at the interface between SUP-FE and I/S-CSC-FE
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In force
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here
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here
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here
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Q Suppl. 55 (04/2007)
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Signalling requirements at the interface between AS-FE and S-CSC-FE
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In force
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here
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here
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here
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Q Suppl. 56 (04/2007)
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Organization of NGN service user data
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In force
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here
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here
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here
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Q Suppl. 57 (01/2008)
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Signalling requirements to support the emergency telecommunications service (ETS) in IP networks
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In force
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here
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here
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here
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Q Suppl. 58 (01/2008)
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Organization of NGN transport user data
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In force
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here
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here
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here
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Q Suppl. 59 (01/2008)
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Signalling flows and parameter mapping for resource control
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In force
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here
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here
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here
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Q Suppl. 61 (04/2010)
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Evaluation of signalling protocols to support ITU-T Y.2171 admission control priority levels
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In force
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here
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here
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here
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Q Suppl. 62 (02/2014)
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Overview of the work of standards development organizations and other organizations on the emergency telecommunications service
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In force
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here
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here
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here
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Q Suppl. 63 (06/2013)
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Signalling protocol mappings in support of the Emergency Telecommunications Service in IP networks
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In force
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here
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here
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here
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Q Suppl. 64 (02/2014)
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Physical realization of next generation networks
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In force
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here
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here
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here
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Q Suppl. 66 (07/2014)
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ITU-T Q.1740-series - Supplement on scenarios and requirements in terms of services and deployments for IMT and IMS in developing countries
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In force
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here
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here
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here
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Q Suppl. 67 (04/2015)
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Framework of signalling for software-defined networking
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In force
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here
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here
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here
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Q Suppl. 68 (12/2015)
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Technical Report on emergency telecommunication service (ETS) interoperability limitations
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In force
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here
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here
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here
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Q Suppl. 69 (11/2025)
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Framework for interconnection between VoLTE-based networks and other networks supporting emergency call
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In force
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here
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here
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here
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Q Suppl. 70 (06/2019)
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Signalling requirements for IMS and GSM/UMTS network supporting multi-device emergency telecommunications service
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In force
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here
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here
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here
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Q Suppl. 72 (11/2025)
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Signalling requirements for IP multimedia subsystem (IMS) emergency call in support of multiple access
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In force
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here
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here
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here
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Q Suppl. 73 (03/2021)
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Guidelines for permissive versus restrictive system implementations to address counterfeit, stolen and illegal mobile devices
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In force
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here
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here
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here
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Q Suppl. 74 (03/2021)
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Roadmap for the ITU-T Q.5050-series - Combat of counterfeit ICT and stolen mobile devices
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In force
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here
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here
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here
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Q Suppl. 75 (07/2026)
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Use cases on the combat of counterfeit ICT and stolen mobile devices
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In force
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here
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-
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here
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Q Suppl. 78 (02/2025)
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Signalling requirements of service function chaining (SFC) with non-uniformly encoded service index in service forwarding path (SFP) changing scenarios
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In force
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here
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here
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here
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Q Suppl. 79 (11/2025)
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Implementation of software-defined wide area networking (SD-WAN) service based on segment routing IPv6 (SRv6)
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In force
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here
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here
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here
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Q Suppl. 80 (03/2026)
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Signalling requirements for broadband network gateway pool based on function decoupling
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In force
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here
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here
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here
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Q Suppl. 81 (03/2026)
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Signalling requirements for inter-domain software-defined wide area networking service
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In force
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here
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here
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here
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Q Suppl. 82 (03/2026)
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Adaptive network coding relay protocol
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In force
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here
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here
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here
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Q Suppl. 83 (07/2026)
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Guidelines on combating counterfeit, tampered and stolen mobile devices in the African Region
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In force
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here
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-
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here
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