Statistics for the international telephone service (number of circuits in operation and volume of traffic)

Statistics for the International Telephone Service (Number of Circuits in Operation and Volume of Traffic) - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 2 pp

Determination of the Number of Circuits in Manual Operation - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering

International Premium Rate Service Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors International Operation - Operation of International Telephone Services

DETERMINATION OF THE NUMBER OF INTERNATIONAL TELEX CIRCUITS REQUIRED TO CARRY A GIVEN VOLUME OF TRAFFIC

Demand Operating of International Circuits - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service

(Pre-published) International Premium Rate Service - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors International Operation -Operation of International Telephone Services

International Premium Rate Service - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors - Operation, Numbering, Routing and Mobile Services - International Operation - Operation of International Telephone Services

International Shared Cost Service - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors - Operation, Numbering, Routing and Mobile Services - International Operation - Operation of International Telephone Services

Application of E.164 Numbering Plan for UPT - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors - International Operation - Numbering Plan of the International Telephone Service Numbering, Routing and Mobile Services - International Operation - Numbering Plan of the International Telephone Service