ITU-T-X.71 Decentralized Terminal & Transit Control Signalling System on International Circuits B

ITU-T-X.71 - 1988 EDITION - CURRENT



Decentralized Terminal & Transit Control Signalling System on International Circuits B


ORDER



Document Number

ITU-T-X.71

Revision Level

1988 EDITION

Status

Current

Publication Date

Nov. 1, 1988