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<DIV dir=ltr><FONT face=Arial color=#000000 size=2>Incoming faxes, the Sangoma
will detect the tones and disable echo cancel.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>To send outbound, you will have to add
another trunk group, of one or more channels and disable echo cancellation and
use that to dial out.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>Example
(/etc/asterisk/zapata.conf)</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>blah blah</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>echocancel=yes</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>blah blah </FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>group = 1</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>channel =>1-20</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>blah blah</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>echo cancel=no</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>group = 2</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2>channel=22-23</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>So you would use for faxing specifically
Zap/g2/<number> and it will use channel 22 or 23 but with echo turned
off.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>Use Zap/g1 and it will use the first group
of channels with echo cancel on (or whatever other parameters come before the
group command)</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>Bill</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV></DIV>
<DIV dir=ltr><BR>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> asterisk-users-bounces@lists.digium.com on
behalf of jeremij jerome<BR><B>Sent:</B> Tue 1/9/2007 10:52 AM<BR><B>To:</B>
asterisk-users@lists.digium.com<BR><B>Subject:</B> [asterisk-users] Fax through
Sangoma A102<BR></FONT><BR></DIV>
<DIV>
<DIV>Hello,</DIV>
<DIV> </DIV>
<DIV>in our company we are trying to do this:</DIV>
<DIV> </DIV>
<DIV>Fax <--> Traditional PBX <--> Asterisk <-->
PSTN</DIV>
<DIV> </DIV>
<DIV>In practice, we have put an Asterisk equipped with a Sangoma A102 (2 PRI
ports) between our PBX (Siemens HiCom) and the PSTN in order to have a VoIP
network along the traditional telephony network. </DIV>
<DIV> </DIV>
<DIV>The problem is with the fax. We just want to send and receive faxes from/to
our fax machine connected to the Siemens (without needing any interaction with
our VoIP network, the faxes are sent to/received from PSTN). Unfortunately we
are experiencing a lot of problems: the faxes not always work and when they
work, it's likely to have incomplete pages. </DIV>
<DIV> </DIV>
<DIV>I know that faxing with VoIP is very troublesome, but maybe someone
else is using a similar configuration and he found a good configuration or maybe
has some hints to improve the results.</DIV>
<DIV> </DIV>
<DIV>We are using Asterisk 1.2.13.</DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV>Jeremi</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV></DIV></BODY></HTML>