European digital cellular telecommunications system (Phase 2); Multi Party (MPTY) supplementary services; Stage 1 (GSM 02.84)
STANDARD published on 12.9.1994
Designation standards: ETSI ETS 300517-ed.1
Publication date standards: 12.9.1994
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: European technical standard
Category: Technical standards ETSI