Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 6.0.1 Release 1997)
NORMA vydána dne 1.9.1999
Designation standards: ETSI EN 300957-V6.0.1
Publication date standards: 1.9.1999
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI