[asterisk-users] RE: yet another faxing issue (outbound only, via ATA)

[Bill Gibbs]

Haven't yet.  Gotta wait until the calls stop flowing in/out.  It's a
production system.  That's on the list of tonight.

 

Bill

 

________________________________

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Lacy Moore
- Aspendora
Sent: Tuesday, January 02, 2007 8:36 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] RE: yet another faxing issue (outbound
only,via ATA)

 

On 1/2/07, Bill Gibbs <bgibbs at edurotech.com> wrote: 

Echo cancel: yes (and zap show channel confirms it's enabled)
I would think if echo cancel was the problem incoming faxes would fail
as well?

 

This is only a guess.  The Sangoma is detecting the fax when it receives
it, and is turning off echo cancel.  However, when box b sends via IAX2
or SIP to box a, the Sangoma no longer knows that it is a fax
transmission and is continuing echo cancellation.  The Cisco 3660
recognizes that it is a fax and turns off echo (or doesn't have echo
cancellation). 

 

Question:  If you turn OFF echo cancellation, does it work then?


 

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