Digital cellular telecommunications system (Phase 2+) (GSM); Call Barring (CB) Supplementary Services - Stage 1 (GSM 02.88 version 6.0.0 Release 1997)
NORMA vydána dne 22.1.1999
Designation standards: ETSI TS 100520-V6.0.0
Publication date standards: 22.1.1999
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI