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TS 11.30















Mobile Services Switching Centre

(P) GSM Phase-1 v3.2.1    1992/02    58 p.

See also:  –

The scope of this report is to give guidelines concerning the specifications of a Mobile Services Switching Centre (MSC). In the case of discrepancy between this report and the approved core GSM recommendations the latter shall prevail.

The different functions provided by the MSC are identified with an indication of the relevant recommendations where the definitive specifications can be found. It should be noted that this report gives example PLMN configurations for the purposes of indicating the most general routing and interworking scenarios. These example PLMN configurations shall not be interpreted in such a way as to constrain network topology, since the internal routing within a country remains a national matter. For each function, an indication is given as to whether it is mandatory or optional.

The purpose of this report is to give an overview of the MSC functions needed to implement the GSM system, in order to help both the administrations/operators in the procurement of their equipments and the manufacturers tendering the MSC.