Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface signalling layer 3; General aspects (GSM 04.07 version 5.1.2)
STANDARD published on 30.4.1997
Designation standards: ETSI ETS 300939-ed.1
Publication date standards: 30.4.1997
The number of pages: 57
Approximate weight : 171 g (0.38 lbs)
Country: European technical standard
Category: Technical standards ETSI