Digital cellular telecommunications system (Phase 2+); Mobile Radio Interface Layer 3 - Supplementary services specification formats and coding (3GPP TS 04.80 version 7.4.1 Release 1998)
NORMA vydaná dňa 30.9.2003
Designation standards: ETSI TS 100950-V7.4.1
Publication date standards: 30.9.2003
The number of pages: 55
Approximate weight : 165 g (0.36 lbs)
Country: European technical standard
Kategória: Technické normy ETSI