ETSI - EN 300 392-11-17
Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 11: Supplementary Services Stage 2; Sub-Part 17: Include Call (IC)
| Organization: | ETSI |
| Publication Date: | 1 November 2001 |
| Status: | inactive |
| Page Count: | 18 |
scope:
The present document specifies the stage 2 description of the Supplementary Service Include Call (SS-IC) for the Terrestrial Trunked Radio (TETRA).
SS-IC enables a served user, while already participating in an active call (original call) to include new participant(s) into a group call together with the participant(s) in the original call.
Man-Machine Interface (MMI) and charging principles are outside of the scope of the present document.
Supplementary service specifications are produced in three stages according to the method defined in ITU-T Recommendation I.130 [1]. The stage 2 description identifies the functional capabilities and the information flows needed to support the supplementary service as specified in its stage 1 description (see ETS 300 392-10-17 [7]). The stage 2 description is followed by the stage 3 description, which specifies the protocols at the air interface and at the various Inter-System Interfaces (ISI) to support the service.
The present document is applicable to TETRA Voice plus Data terminal equipment and networks.
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