ETSI TS 100 933

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ETSI TS 100 933 English PDF Digital cellular telecommunications system (Phase 2+) (GSM); Voice Group Call Service (VGCS); Stage 2 (GSM 03.68 version 6.2.0 Release 1997)

standard published 05/01/2000 by European Telecommunications Standards Institute

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April 2000 6.2.0Change request approved by SMG email approval after TSGN#7 CR A014 VGCS signalling flows(CAT F) CR A015 Data Flow for Fast Call setup (CAT F) CR A020 Recommendation to use DTMF tones for VGCS talking subscriber downlink un-muting.(CAT F)