ITU-T-Q.8 › Signalling Systems To Be Used for International Manual & Automatic Working on Analogue

ITU-T-Q.8 - 1988 EDITION - CURRENT



Signalling Systems To Be Used for International Manual & Automatic Working on Analogue


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Document Number

ITU-T-Q.8

Revision Level

1988 EDITION

Status

Current

Publication Date

Nov. 1, 1988