The present dcoument gives the stage 3 description of the Completion of Calls to Busy Subscriber (CCBS) supplementary service. The present document specifies the procedures used at the radio interface (Reference point Um as defined in TS 24.002
) 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.
In TS 24.010
the general aspects of the specification of supplementary services at the layer 3 radio interface are given.
3GPP TS 24.080
specifies the formats and coding for the supplementary services.
Definitions and descriptions of supplementary services are given in TS 22.004
, 3GPP TS 22.08x and 3GPP TS 22.09x-series. Technical specification TS 22.093
is related specifically to the Completion of Calls to Busy Subscriber supplementary service.
The technical realization of supplementary services is described in technical specifications TS 23.011
, 3GPP TS 23.08x and 3GPP TS 23.09x-series. 3GPP TS 23.093 is related specifically to Completion of Calls to Busy Subscriber supplementary service.
The procedures for Call Control, Mobility Management and Radio Resource management at the layer 3 radio interface are defined in TS 24.007
and TS 24.008
The following supplementary services belong to the call completion supplementary services and are described in the present document:
Completion of Calls to Busy Subscriber (CCBS) (see clause 4).
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
: "Vocabulary for 3GPP Specifications".
: "General on supplementary services".
TS 22.007: "Mobile Stations (MS) features".
→ to date, withdrawn by 3GPP
: "Man-Machine Interface (MMI) of the Mobile Station (MS)".
: "Completion of Calls to Busy Subscriber (CCBS) Service description, Stage 1".
: "Technical realization of supplementary services".
: "Technical realization of Completion of Calls to Busy Subscriber (CCBS)".
: "GSM-UMTS Public Land Mobile Network (PLMN) access reference configuration".
: "Mobile radio interface signalling layer 3 General aspects".
: "Mobile radio interface layer 3 specification".
: "Mobile radio interface layer 3 Supplementary services specification General aspects".
: "Mobile radio interface layer 3 supplementary services specification Formats and coding".
: "Call Waiting (CW) and Call Hold (HOLD) supplementary services Stage 3".