ITU-T Q.463-1989
Signalling Procedures - Signalling between the Outgoing International R2 Register and an Incoming R2 Register in a National Exchange in the Destination Country - Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp

Standard No.

ITU-T Q.463-1989

Release Date

1989

Published By

ITU-T - International Telecommunication Union/ITU Telcommunication Sector