0 Scope

24.0833GPPCall Waiting (CW) and Call Hold (HOLD) supplementary servicesRelease 17Stage 3TS

The present document specifies the procedures used at the radio interface (Reference point Um as defined in 3GPP TS 24.002) for normal operation, registration, erasure, activation, deactivation, invocation and interrogation of call completion 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 3GPP 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 3GPP TS 22.004 and 3GPP TS 22.08x and 3GPP TS 22.09x‑series. 3GPP TS 22.083 is related specially to call completion supplementary services.

Technical realization of supplementary services is described in 3GPP TS 23.011 and GSM 03.8x and GSM 03.9x‑series.

3GPP TS 23.083 is related specially to call completion supplementary services.

The procedures for Call Control, Mobility Management and Radio Resource management at the layer 3 radio interface are defined in 3GPP TS 24.007 and 3GPP TS 24.008.

The following supplementary services belong to the call completion supplementary services and are described in the present document:

‑ Call waiting (CW) (clause 1);

‑ Call hold (HOLD) (clause 2).

0.1 References

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.

[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".

[2] 3GPP TS 22.004: "General on supplementary services".

[3] 3GPP TS 22.081: "Line identification supplementary services ‑ Stage 1".

[4] 3GPP TS 22.082: "Call Forwarding (CF) supplementary services ‑ Stage 1".

[5] 3GPP TS 22.083: "Call Waiting (CW) and Call Hold (HOLD) supplementary services ‑ Stage 1".

[6] 3GPP TS 22.084: "MultiParty (MPTY) supplementary services ‑ Stage 1".

[7] 3GPP TS 22.085: "Closed User Group (CUG) supplementary services ‑ Stage 1".

[8] 3GPP TS 22.086: "Advice of charge (AoC) supplementary services ‑ Stage 1".

[9] 3GPP TS 22.088: "Call Barring (CB) supplementary services ‑ Stage 1".

[10] 3GPP TS 22.090: "Unstructured Supplementary Services Data (USSD) ‑ Stage 1".

[11] 3GPP TS 22.091: "ECT supplementary services operation ‑ Stage 1".

[12] 3GPP TS 23.011: "Technical realization of supplementary services".

[13] 3GPP TS 23.081: "Line identification supplementary services ‑ Stage 2".

[14] 3GPP TS 23.082: "Call Forwarding (CF) supplementary services ‑ Stage 2".

[15] 3GPP TS 23.083: "Call Waiting (CW) and Call Hold (HOLD) supplementary services ‑ Stage 2".

[16] 3GPP TS 23.084: "MultiParty (MPTY) supplementary services ‑ Stage 2".

[17] 3GPP TS 23.085: "Closed User Group (CUG) supplementary services ‑ Stage 2".

[18] 3GPP TS 23.086: "Advice of Charge (AoC) supplementary services ‑ Stage 2".

[19] 3GPP TS 23.088: "Call Barring (CB) supplementary services ‑ Stage 2".

[20] 3GPP TS 23.090: "Unstructured supplementary services operation ‑ Stage 2".

[21] 3GPP TS 23.091: "Explicit Call Transfer (ECT) supplementary service ‑ Stage 2".

[22] 3GPP TS 24.002: "GSM-UMTS Public Land Mobile Network (PLMN) Access Reference Configuration".

[23] 3GPP TS 24.007: "Mobile radio interface signalling layer 3; General aspects".

[24] 3GPP TS 24.008: "Mobile radio interface layer 3 specification".

[25] 3GPP TS 24.010: "Mobile radio interface layer 3; Supplementary services specification; General aspects".

[26] 3GPP TS 24.080: "Mobile radio interface layer 3 supplementary services specification; Formats and coding".

[27] 3GPP TS 24.082: "Call Forwarding (CF) supplementary services ‑ Stage 3".

0.2 Abbreviations

Abbreviations used in the present document are listed in 3GPP TR 21.905.