Digital cellular telecommunications system (Phase 2+) (GSM). Unstructured Supplementary Service Data (USSD). Stage 3 (GSM 04.90 version 7.0. 1 Release 1998)
NORM herausgegeben am 1.4.2001
Designation standards: STN EN 300957-V7.0.1
Classification mark: 870957
Catalog number: 17146
Publication date standards: 1.4.2001
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN