Transmission Planning Aspects of the Speech Service in Digital Public Land Mobile Networks Transmission Systems and Media - Transmission Plan Aspects of Special Circuits and Connections Using the International Telephone Connection Network (SGrp XII) 21 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 to