ITU-T-Q.317 Futher Specification Clauses Relative To Line Signalling

ITU-T-Q.317 - 1988 EDITION - CURRENT



Futher Specification Clauses Relative To Line Signalling


ORDER



Document Number

ITU-T-Q.317

Revision Level

1988 EDITION

Status

Current

Publication Date

Nov. 1, 1988