ITU-T R.79-1989
Automatic Tests of Transmission Quality on Telegraph Circuits between Switching Centres - Telegraph Transmission Study Group IX; 8 pp

Standard No.

ITU-T R.79-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T R.79-1989

Scope

Unless stated otherwise, the end of the circuit in the active position will be denoted by the letter A and the end of the circuit in the passive position by the letter B throughout this Recommendation

ITU-T R.79-1989 history

• 1989 ITU-T R.79-1989 Automatic Tests of Transmission Quality on Telegraph Circuits between Switching Centres - Telegraph Transmission Study Group IX; 8 pp