European digital cellular telecommunications system (Phase 2); Call Barring (CB) supplementary services; Stage 1 (GSM 02.88)
STANDARD published on 12.9.1994
Designation standards: ETSI ETS 300520-ed.1
Publication date standards: 12.9.1994
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: European technical standard
Category: Technical standards ETSI