Digital cellular telecommunications system (Phase 2+) (GSM); Inband Tandem Free Operation (TFO) of Speech Codecs; Service Description; Stage 3 (GSM 08.62 version 7.1.0 Release 1998)
NORMA vydána dne 28.4.2000
Designation standards: ETSI TS 101504-V7.1.0
Publication date standards: 28.4.2000
The number of pages: 70
Approximate weight : 210 g (0.46 lbs)
Country: European technical standard
Kategorie: Technické normy ETSI