ITU E.543:1988
ITU E.543:1988 Grades Of Service In Digital International Telephone Exchanges
Table of Contents
1Introduction2ScopeoftheRecommendation
3Gradeofserviceparameters
3.1Lossgradeofservice
3.2Delaygradeofserviceincaseofchannel-associated
signaling
3.3Delaygradeofserviceincaseofanycombinationof
channel-associatedandcommonchannelsignaling
4Gradeofservicestandards
5MeasurementstomonitorexchangeGOSperformance
5.1Delaymeasurements
5.2Lossmeasurements