
Digital cellular telecommunications system (Phase 2+) (GSM); Inband Tandem Free Operation (TFO) of Speech Codecs; Service Description; Stage 3 (GSM 08.62 version 7.1.1 Release 1998)
STANDARD published on 8.8.2000
Designation standards: ETSI TS 101504-V7.1.1
Publication date standards: 8.8.2000
The number of pages: 70
Approximate weight : 210 g (0.46 lbs)
Country: European technical standard
Category: Technical standards ETSI