Network Aspects (NA); Quality of service indicators for Open Network Provision (ONP) of voice telephony and Integrated Services Digital Network (ISDN)
STANDARD published on 15.7.1994
Designation standards: ETSI ETR 138-ed.1
Publication date standards: 15.7.1994
The number of pages: 27
Approximate weight : 81 g (0.18 lbs)
Country: European technical standard
Category: Technical standards ETSI