ETSI ETR 138

Reference: M00000619

Condition: New product

ETSI ETR 138 Network Aspects (NA); Quality of service indicators for Open Network Provision (ONP) of voice telephony and Integrated Services Digital Network (ISDN)

standard by European Telecommunications Standards Institute, 07/01/1994

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Define a common set of quality of service parameters covering areas of concern to cusomers in the field of voice telephony as provided over the PSTN and the ISDN

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Edition: 1 Published: 07/01/1994 Number of Pages: 27 File Size: 1 file , 83 KB