On Wed, May 12, 2010 at 11:47 AM, Helmut Kuper
<helmut.kuper@ewetel.de> wrote:
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Hello,
I'm not sure whether I'm right here or not. But maybe someone has faced
same problem:
Scenario A:
I'm using Sangoma A104d and FreeSWITCH Version 1.0.head (17097:17188M).
I enabled hardware based detection of fax and dtmf. Further hardware
based HEC is enabled
I'm not able to reveive a FAX (analog) via PSTN, while sending works and
internal (SIP) works as well. So there is no problem with the ATAs I use
nor with the network (which routes the RTP along 80 kilometers one way).
Scenario B:
I'm able to receive FAX from pstn with same setup, but have hardware
based HEC disabled. So in this case everything works fine.
I thought sangoma's hardware based Fax detection feature should have
disabled HEC when a Fax is detected, but it doesn't seems so. So my
current thoughts are about the question whether FS is able to disable
hardware HEC via mod_openzap and wanpipe driver for the corresponding
A104d channel, when FS knows that the target is a FAX device ...
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