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TS 24.642 (CT1)
Completion of Communications to Busy Subscriber (CCBS) and Completion of Communications by No Reply (CCNR) using IMS – Protocol specification

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(P) V14.0.0    2017/03    57 p.
(P) V13.0.0    2015/12    58 p.
(P) V12.0.0    2013/09    57 p.
(P) V11.4.0    2013/06    57 p.
(P) V10.7.0    2013/06    57 p.
(P) V9.10.0    2013/06    50 p.
(P) V8.11.0    2013/06    43 p.


Rapporteur:  Mr. Kreipl, Michael
See also:  CCBS-related TS/TR     CCNR-related TS/TR    


This TS specifies the stage three Protocol Description of the Completion of Communications to Busy Subscriber (CCBS) service and the Completion of Communication on no Reply (CCNR) service, based on stage one and two of the ISDN supplementary services. It provides the protocol details in the IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP) and the Session Description Protocol (SDP).

The Completion of Communications to Busy Subscriber CCBS service enables user A, encountering a busy destination B, to have the communication completed without having to make a new communication attempt when the destination B becomes not busy.

The Completion of Communications on No Reply CCNR supplementary service enables user A, encountering a destination B which does not answer the communication (No Reply), to have the communication completed without having to make a new communication attempt when the destination becomes not busy after having initiated an activity.

This TS is applicable to User Equipment (UE) and Application Servers (AS) which are intended to support the CCBS and CCNR supplementary services.


 

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1   Scope [R8]   PDF-p. 7
2   References [R8]   PDF-p. 8
3   Definitions and abbreviations [R8]
4   Completion of Communications to Busy Subscriber (CCBS), Completion of Communications on No Reply (CCNR) and Completion of Communications on Not Logged-in (CCNL) [R8]   PDF-p. 10
4.1   Introduction
4.2   Description
4.3   Operational requirements   PDF-p. 11
4.4   Coding requirements
4.5   Signalling requirements
4.5.1   Activation/deactivation
4.5.2   Registration/erasure   PDF-p. 12
4.5.3   Interrogation
4.5.4   Invocation and operation
4.5.4.1   Actions at the originating UE
4.5.4.2   Actions at the originating AS
4.5.4.3   Actions at the terminating AS
4.5.4.4   Actions at the terminating UE
4.5.5   SIP specific Event Notifications   PDF-p. 24
4.6   Interaction of Call-Completion with other services
4.7   Void
4.8   Parameter values (timers)   PDF-p. 27
4.9   Communication completion configuration XCAP application usage [R9]
A   Signalling flows [R8]   PDF-p. 31
B   Example of filter criteria [R8]   PDF-p. 51      Up
C   IANA Registration templates [R9]   PDF-p. 52
D   Change history   PDF-p. 54

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