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Universal Personal Telecommunication (UPT); The service concept; Part 10: Supplementary services
STANDARD published on 30.12.1992
Designation standards: ETSI ETR 055-10-ed.1
Publication date standards: 30.12.1992
SKU: NS-311566
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: European technical standard
Category: Technical standards ETSI
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