ETSI EN 301 711

ETSI EN 301 711
ETSI EN 301 711 English PDF Digital cellular telecommunications system (Phase 2+) (GSM); User-to-User Signalling (UUS); Stage 3 (GSM 04.87 version 7.0.2 Release 1998)

standard published 12/01/1999 by European Telecommunications Standards Institute

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Service to facilitate transfer of simple messages between users of a network during a call. Release 1998

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