ITU E.855:1988
ITU E.855:1988 Connection Integrity Objective For The International Telephone Service
Table of Contents
Introduction1Definitions
1.1Connectionintegrityfortelephoneservice
1.2Meantimebetweeninterruptions(MTBI)
1.3Meaninterruptionduration(MID)
1.4Transmissioninterruption
2Ameasuretoquantifytelephoneconnectionintegrity
performance
3Overallobjectiveforspeechlossprobability
4Allocationoftheoverallobjective
ANNEXA-Tolerabilityoftelephoneusertotransmission
interruptionslastingseveralsecondsormore
A.1Measure
A.2Measuringmethod
A.3Resultsoftests
ANNEXB-Relationshipbetweenspeechlossprobability
anditsestimation
ANNEXC-Qualityofspeechimpairedbyshortinterruptions
C.1Measure
C.2Measuringmethod
C.3Testresults