Digital cellular telecommunications system (Phase 2+) (GSM); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2 (GSM 03.83 version 7.0.0 Release 1998)
STANDARD published on 13.8.1999
Designation standards: ETSI TS 100544-V7.0.0
Publication date standards: 13.8.1999
The number of pages: 39
Approximate weight : 117 g (0.26 lbs)
Country: European technical standard
Category: Technical standards ETSI