European digital cellular telecommunications system (Phase 2) - Unstructured Supplementary Service Data (USSD) - Stage 1 (GSM 02.90 version 4.1.1)
STANDARD published on 1.9.1998
Designation standards: ČSN ETS 300625-ed.2
Classification mark: 872615
Catalog number: 53138
Publication date standards: 1.9.1998
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN