ITU-T E.427-1989
Collection and Statistical Analysis of Special Quality of Service Observation Data for Measurements of Customer Difficulties in the International Automatic Service - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineer

Standard No.

ITU-T E.427-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T E.427-1989

Scope

This Recommendation is provided to permit the orderly collection of data required for special studies to identify sources of difficulty in customer use of the international automatic telephone service.

ITU-T E.427-1989 history

• 1989 ITU-T E.427-1989 Collection and Statistical Analysis of Special Quality of Service Observation Data for Measurements of Customer Difficulties in the International Automatic Service - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineer