Digital cellular telecommunications system; Multi Party (MPTY) supplementary services; Stage 3 (GSM 04.84 version 5.0.1)
STANDARD published on 30.5.1997
Designation standards: ETSI ETS 300954-ed.1
Publication date standards: 30.5.1997
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: European technical standard
Category: Technical standards ETSI