Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface layer 3 supplementary services specification; Formats and coding (GSM 04.80 version 5.2.1) (Endorsed by AENOR in December of 2005.)
NORMA vydána dne 1.12.2005
Designation standards: UNE-ETS 300950ED3
Publication date standards: 1.12.2005
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE