automatic switching of telegraph

automatic telephone switching system

telegraph automatic switching system

booking point of telephone and telex calls

Consultative Committee of International Telegraph and Telephone

integrated application of telephone and network

The Consultative Committee of International Telegraph and Telephone CCITT

ministry of posts telephone and telegraph

American Telephone and Telegraph Company

American Telephone and Telegraph Company AT&T

Consultive Committee International Telegraph and Telephone

Internatioal Telephone and Telegraph Corporation

International Consultation Committee for Telegraph and Telephone

International Consultative Telegraph and Telephone Committee

International Radio Consultative Committee for Telegraph and Telephone

International Telegraph and Telephone Advisory Committee

International Telegraph and Telephone Consultaive Committee

International Telegraph and Telephone Consultative

International Telegraph and Telephone Consultative Committee