SSH EN 300 918 V7.1.2:1999

Digital cellular telecommunications system (Phase 2+) (GSM); General on supplementary services (GSM 02.04 version 7.1.2 Release 1998)

Scope

The purpose of the present document is to define a recommended set of supplementary services to the Teleservices and
Bearer services which will be supported by a GSM PLMN in connection with other networks as a basis for the definition
of the network capabilities required.
The descriptions of the different supplementary services are contained in the GSM 02.80 series.
Supplementary services not covered in GSM 02.04 or GSM 02.80 series cannot be introduced unilaterally in any GSM
PLMN if they require modification of the GSM signalling Specifications.
Technical realization of supplementary services is described in GSM 03.11 and 04.10.