(WITHDRAWN) Overview of Recommendations on Layer 1 for ISDN and B-ISDN Customer Accesses - Integrated Services Digital Network (ISDN); ISDN User-Network Interfaces (Study Group XVIII) 9 pp
The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the International Telecommunication
Union. The ITU-T is responsible for studying technical, operating and tariff questions and issuing
Recommendations on them with a view t