ETSI TS 101 377-4-11

ETSI TS 101 377-4-11
ETSI TS 101 377-4-11 English PDF GEO-Mobile Radio Interface Specifications; Part 4: Radio interface protocol specifications; Sub-part 11: Call Waiting (CW) and Call Holding (HOLD) Supplementary Services; GMR-2 04.083

standard published 03/01/2001 by European Telecommunications Standards Institute

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GMR-2 specification which call waiting (CW) and call holding (HOLD) supplementary services.

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