Radio Equipment and Systems (RES); Digital Enhanced Cordless Telecommunications/ Global System for Mobile Communications (DECT/ GSM) Inter-Working Profile (IWP); GSM Phase 2 Supplementary Services Implementation First Edition
This draft European Telecommunication Standard (ETS) specifies the interworking procedures and mappings necessary to ensure that Global System for Mobile communication (GSM) phase 2 supplementary services can be provided over Digital Enhanced Cordless Telecommunications (DECT)@ as specified in ETS 300 466 [4]. To enable DECT terminals to interwork with DECT systems which are connected to the GSM infrastructure@ the DECT access protocols and Fixed Part (FP) and Portable Part (PP) interworking and mappings are specified for Mobile Switching Centre (MSC) attachment of the DECT FP. In this ETS@ the general aspects relevant for interworking are given@ together with the interworking procedures and mappings used at the DECT radio interface for registration@ erasure@ activation@ de-activation@ invocation and interrogation of supplementary services. Provision and withdrawal of supplementary services is an administrative matter between the DECT subscriber attached to the GSM network@ and the service provider and causes no signalling on the radio interface. Under the aspects of interworking@ definitions and descriptions of supplementary services are given in ETS 300 466 [4]. This ETS covers the additions to the interworking and mappings in ETS 300 370 [2] for the DECT FP and PP@ to ensure that GSM supplementary services can be provided over the DECT air interface. The implementation in the DECT PP of the GSM functional protocol for control of supplementary services@ is outside the scope of this ETS. This ETS is a part of a set of standards for the DECTIGSM Interworking Profile (IWP) concept that includes: - general description of service requirements@ functional capabilities and information flows@ (see ETS 300 466 [4]); - access and mapping (protocol/procedure description for 3@1 kHz speech service)@ (see ETS 300 370 [2]); - GSM-MSC - DECT-FP fixed interconnection (see ETS 300 499 [24]); and - GSM phase 2 supplementary services implementation (this ETS). Other standards of the DECT/GSM IWP are expected to describe (see annex A): - implementation of short message services@ point-to-point and cell broadcast (DE/RES-03057); - implementation of bearer services (ETS 300 756); and - implementation of facsimile group 3 (DE/RES -03072). This ETS is based upon the specifications of the Technical Specifications (TS) GSM 04.0x[13]@ [14]@ TS GSM 04.8x series [16] to [23] and ETS 300 370 [2].