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Network Aspects (NA); Quality of service indicators for Open Network Provision (ONP) of voice telephony and Integrated Services Digital Network (ISDN)
STANDARD published on 31.12.1997
Designation standards: ETSI ETR 138-ed.2
Publication date standards: 31.12.1997
SKU: NS-311690
The number of pages: 30
Approximate weight : 90 g (0.20 lbs)
Country: European technical standard
Category: Technical standards ETSI
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