Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and automatically established calls
Publication date
1996-10
Original language
English
Pages
9
Publication date
1996-10
Original language
English
Pages
9
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Replacement amendments
This document has been modified by: ITU-T V.25 Corrigendum 1:2001-07