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New ETSI GTS GSM 03.81 View larger

ETSI GTS GSM 03.81

M00000253

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ETSI GTS GSM 03.81 Digital cellular telecommunications system (Phase 2+) (GSM); Line identification supplementary services; Stage 2 (GSM 03.81 version 5.1.0)

standard by European Telecommunications Standards Institute, 04/01/1998

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This GTS gives the stage 2 description of the call identification supp lementary services. The group line identification supplementary services are divided into the following four supplementary services: -Calling line identification presentationCLIP(clause 1); -Calling line identification restrictionCLIR(clause 2); -Connected line identification presentationCOLP(clause 3); -Connected line identification restrictionCOLR(clause 4).