SS-ETS-300356-18 › Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version2 for the international interface - Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service
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Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version2 for the international interface - Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service
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33.020 (Telecommunications in general Including infrastructure)
Designation Name
SS-ETS 300356-18
Revision Level
EDITION 1
Status
Superseded
Publication Date
June 30, 1995
Language(s)
English