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TS 04.93 (CT4)
Completion of Calls to Busy Subscriber (CCBS) – Stage 3

3GPP‑Page   ETSI‑search   full‑ToC    
(P) GSM Rel-98 v7.0.0  1999/06  23 p.
(P) GSM Rel-97 v6.1.1  1999/02  23 p.

Rapporteur:  WIEHE, Ulrich
See also:
CCBS-related TS/TR
TS 24.093  its descendant
This TS gives the stage 3 description of the Completion of Calls to Busy Subscriber (CCBS) supplementary service. This TS specifies the procedures used at the radio interface (Reference point Um as defined in TS 04.02) for normal operation, activation, deactivation, invocation and interrogation of the completion of calls to busy subscriber supplementary services. Provision and withdrawal of supplementary services is an administrative matter between the mobile subscriber and the service provider and cause no signalling on the radio interface.

The following supplementary services belong to the call completion supplementary services and are described in this TS:
  • Completion of Calls to Busy Subscriber (CCBS)

 

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1  Scope  PDF-p. 5
2  References
3  Definitions and abbreviations  PDF-p. 6
3.1  Definitions
3.2  Abbreviations
4  General  PDF-p. 7
4.1  Overview
4.2  Activation
4.3  CCBS Recall and CCBS Call Set-up  PDF-p. 9
4.3.1  CCBS Call Set-up (MS A idle)
4.3.2  CCBS Call Set-up (MS A not idle)  PDF-p. 11  Up
4.3.2.1  Existing call released
4.3.2.2  Existing call placed on hold  PDF-p. 13
4.4  Deactivation  PDF-p. 15
4.5  Interrogation  PDF-p. 16
A  Operation for Non-Supporting MS's  PDF-p. 18
A.0  Scope
A.1  MSs which do not support CCBS
A.1.1  Activation for non supporting MSs
A.2  CCBS Call Set-up for non supporting MSs  PDF-p. 20
A.3  Deactivation for non supporting MSs  PDF-p. 21  Up
A.4  Interrogation for non supporting MSs
B  Status of Technical Specification GSM 04.93  PDF-p. 22

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