ITU-T E.440-1996 Customer Satisfaction Point - Telephone Network and ISDN Quality of Service Network Management and Traffic Engineering (Study Group 2) 6 pp
The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (Itü).
ITU-T E.440-1996 history
1996ITU-T E.440-1996 Customer Satisfaction Point - Telephone Network and ISDN Quality of Service Network Management and Traffic Engineering (Study Group 2) 6 pp