[Freeswitch-users] mod_openzap, sangoma, FAX and HW-HEC
helmut.kuper at ewetel.de
Wed May 12 09:47:56 PDT 2010
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I'm not sure whether I'm right here or not. But maybe someone has faced
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).
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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