Digital cellular telecommunications system (Phase 2+) (GSM); User-to-User Signalling (UUS); Service description, Stage 1 (GSM 02.87 version 5.2.1)
NORM herausgegeben am 30.11.1997
Designation standards: ETSI GTS GSM 02.87-V5.2.1
Note: UNGÜLTIG
Publication date standards: 30.11.1997
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: European technical standard
Kategorie: Technische Normen ETSI