[asterisk-users] T.30 Fax and Echo Cancelation

Anita Hall anita.hall at simmortel.com
Fri Apr 13 02:25:59 CDT 2012


I know that all echo cancelers are supposed to shut down when they hear the
CNG or CED fax tone. Is this always a good thing ? I know that T.30 is
supposed to be half duplex, so echo should not be there but in my session
recordings, I have seen both sides trying to send at the same time (is that
a sign of some other bad thing?)

What if my T.30 fax is failing due to echo ?

Check out this article

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20120413/94b3c0e7/attachment.htm>

More information about the asterisk-users mailing list