ITU-T Q.771-1989
Functional Description of Transaction Capabilities - Specifications of Signalling System No. 7 (Study Group XI) 30 pp (ETSI PRETS 300 287-1: 1995)

Standard No.

ITU-T Q.771-1989

Release Date

1989

Published By

ITU-T - International Telecommunication Union/ITU Telcommunication Sector