Digital cellular telecommunications system (Phase 2+) (GSM); General on supplementary services (GSM 02.04 version 6.1.1 Release 1997)
NORMA vydána dne 30.8.1999
Designation standards: ETSI TS 100918-V6.1.1
Publication date standards: 30.8.1999
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI