European digital cellular telecommunications system (Phase 2). Call Waiting (CW) and Call Holding (HOLD) - supplementary services - stage 1 (GSM 02.83)
STANDARD published on 1.11.1995
Designation standards: ČSN ETS 300516
Classification mark: 872547
Catalog number: 18561
Publication date standards: 1.11.1995
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN