ITU-T Q.43-1989
Transmission Losses@ Relative Levels - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI; 6 pp; Cancelled)

Standard No.

ITU-T Q.43-1989

Release Date

1989

Published By

ITU-T - International Telecommunication Union/ITU Telcommunication Sector