DS/ETS 300569
Digital cellular telecommunications system (Phase 2) - Closed User Group (CUG) supplementary services - Stage 3 (GSM 04.85)
| Organization: | DS |
| Publication Date: | 6 November 1997 |
| Status: | active |
| ICS Code (Global System for Mobile Communication (GSM)): | 33.070.50 |
scope:
This European Telecommunication Standard (ETS) specifies the procedures used at the radio interface (reference point Um as defined in technical specification GSM 04.02) for normal operation, registration, erasure, activation, deactivation, invocation and interrogation of community of interest supplementary services. The provision and withdrawal of supplementary services is an administrative matter between the mobile subscriber and the service provider and causes no signalling on the radio interface.
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