Accessibility for 64 kbit/s Circuit Switched International End-to-End ISDN Connection Types - Telephone Network and ISDN Quality of Service Network Management and Traffic Engineering (Study Group II) 9 pp
Accessibility for 64 kbit/s Circuit Switched International End-to-End ISDN Connection Types - Telephone Network and ISDN Quality of Service, Network Management and Traffic Engineering (Study Group II) 9 pp