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ETSI TS 100 542

Digital cellular telecommunications system (Phase 2+) (GSM); Line identification supplementary services; Stage 2 (GSM 03.81 version 7.0.1 Release 1998)
standard by European Telecommunications Standards Institute, 07/01/1999
Publisher: ETSI

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Upgrade from Phase 2+ to Release 1998 SUBJECT Introduction of eCLI

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