ITU-T U.140-1989
Definitions of Essential Technical Terms Relating to Telegraph Switching and Signalling - Telegraph Switching (Study Group IX) 13 pp

Standard No.

ITU-T U.140-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T U.140-1989

Scope

DEFINITIONS OF ESSENTIAL TECHNICAL TERMS RELATING TO TELEGRAPH SWITCHING AND SIGNALLING

ITU-T U.140-1989 history

• 1989 ITU-T U.140-1989 Definitions of Essential Technical Terms Relating to Telegraph Switching and Signalling - Telegraph Switching (Study Group IX) 13 pp