ETSI ETR 221-ed.1

Universal Personal Telecommunication (UPT); Phase 1 (restricted UPT service scenario); Supplementary services

STANDARD published on 15.11.1995

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The information about the standard:

Designation standards: ETSI ETR 221-ed.1
Publication date standards: 15.11.1995
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: European technical standard
Category: Technical standards ETSI