SSH ETS 300 569:1996 ed.2

Digital cellular telecommunications system (Phase 2) (GSM); Closed User Group (CUG) supplementary services; Stage 3 (GSM 04.85)

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. In technical specification GSM 04.10, the general aspects of the specification of supplementary services at the layer 3 radio interface are given. Technical specifications GSM 04.80 specifies the formats coding for the supplementary services. Definitions and descriptions of supplementary services are given in technical specifications GSM 02.04 and GSM 02.8x and GSM 02.9x-series. Technical specification GSM 02.85 is related to the community of interest supplementary services.