ITU-T M.605-1989
Routine Maintenance Schedule for International Public Telephony Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 9 pp

Standard No.

ITU-T M.605-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T M.605-1989

Scope

A schedule for the routine maintenance of the international public telephony circuits linking any two countries (including speech circuits of Signalling System No. 6), is drawn up by bilateral agreement between the technical services i) of the countries c

ITU-T M.605-1989 history

• 1989 ITU-T M.605-1989 Routine Maintenance Schedule for International Public Telephony Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 9 pp