Content for  TS 23.135  Word version:  16.0.0

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1  ScopeWord‑p. 5
The present document gives the stage 2 description of the Multicall supplementary service.

2  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.
TR 21.905: "3GPP Vocabulary".
TS 22.100: "UMTS Phase 1".
TS 22.105: "Services & Service capabilities".
TS 22.135: "Multicall Stage 1".
TS 23.009: "Handover procedures".
TS 23.011: "Technical realisation of supplementary services".
TS 23.018: "Basic call handling; Technical realization".
TS 23.083: "Call Waiting (CW) and Call Hold (HOLD) Supplementary Service - Stage 2".
TS 24.008: "Mobile radio interface layer 3 specification Core Network Protocol - Stage 3".

3  Definitions and abbreviationsWord‑p. 6

3.1  Definitions

For the purposes of the present document, the terms and definitions given in TS 22.135 and the following apply.
Speech Call:
speech call means one of TS11 (Telephony), TS12 (Emergency call), TS61 (Alternate speech and facsimile group 3).

3.2  Abbreviations

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

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