Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Call Diversion supplementary services (ISO/IEC 21411 (2001), modified)
适用范围:This European standard specifies requirements in the telecommunications sector.
Integrated Services Digital Network(ISDN) - Three Party (3PTY) supplementary service - Digital Subscriber Signalling System No one (DSS1) protocol - Part 4 : Abstract Test Suite (ATS) and partial Pro...
适用范围:This European standard specifies requirements in the telecommunications sector.
Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; User-to-User Signalling (UUS) supplementary service - Part 1: Protocol specificati...
适用范围:The document contains the endorsement notice for ITU-T Recommendation Q.2957.1 as an ETS with agreed modifications.
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1 - Sub-part 1: Call identification (CI)
适用范围:This European standard specifies requirements in the telecommunications sector.
Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface - Part 18: Completion of Calls to Busy Subscriber (CCBS) sup...
适用范围:The document specifies requirements in the telecommunications sector.
Integrated Services Digital Network (ISDN); Digital Subscriber Signalling system No.one(DSS1) protocol;Explicit Call Transfer (ECT) supplementary service; Part 3: Test Suite Structure and Test Purposes...
适用范围:This European standard specifies requirements in the telecommunications sector.
Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call completion supplementary services (ISO/IEC 13866 (1995), modified)
适用范围:This European standard specifies requirements in the telecommunications sector.
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