ETSI TS 124 642 V17.0.0:2022-04
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Completion of Communications to Busy Subscriber (CCBS) and Completion of Communications by No Reply (CCNR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.642 version 17.0.0 Release 17)
Hardcopy , PDF
06-05-2024
English
04-01-2022
The present document specifies the stage three Protocol Description of the Completion of Communications to Busy Subscriber (CCBS) service, the Completion of Communications on no Reply (CCNR) service, and Completion of Communications on not Logged-in (CCNL) service, based on stage one and two of the ISDN supplementary services.
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