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<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>I've
had a similar problem with a A101DX + A202DX. I was trying to bridge from my
A101 to my A202 to get faxes over my E1 line. I've done an number of things,
I'm not exactly sure which one helped, but it now works very nice for fax:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>(1)
Using "zap show channel N" on the CLI I noticed that echo canceling
was on even those I was bridging two Zap devices. I disabled the HWEC on my
A202 card and it's now ok (no echo cancel on the A202 card). This was an option
for me because I'm only doing fax on the analog card. I don't think this had a
lot to do with the final "fix" of the problem.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>(2)
I emailed Sangoma and they told me there's a newer version of the drivers that
tweek the echo cancel algorithm to make it better suited for fax. The driver
was beta at the time so I didn't try it. You might want to contact Sangoma
yourself!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>(3)
I fixed my "zttest" timing! When I tested I had really bad timing (94,00
worst and < 99,00 average). The docs and the wiki say that's bad timing but
I had absolutely no problems with voice quality. None! And I've only done one
thing to fix my timing: "/etc/init.d/irqbalance restart". I have no
idea why that makes a difference but it does and I've now got 99,95 average
timing from zttest with the worst being over 99,00. You might want to try this
yourself since you also seem to have the "X" (pci express) version of
the card.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>--<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Cosmin
Prund<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=RO style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De
la:</span></b><span lang=RO style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b>În numele </b>Jeremy Mann<br>
<b>Trimis:</b> Wednesday, July 09, 2008 10:28 PM<br>
<b>Către:</b> 'Asterisk Users Mailing List - Non-Commercial Discussion'<br>
<b>Subiect:</b> [asterisk-users] Zap Bridged Channels<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have a Sangoma A200DX, and am trying to bridge an FXO
channel with FXS for modem connectivity.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have Zap/8 as a Fax Machine<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Zap/5 is my outside line. When a call rings in on
Zap/5 it immediately calls Zap/8 and bridges the channels. I see it doing
a native bridge on the two. I have echo cancel off on native bridge, but
I can never get fax connectivity, it just tries to negotiate forever then
eventually hangs up.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Anything special to getting this to work? <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Below is an example of CLI output when the Fax Machine tries
to call out, it does the same thing, never get the two machines to complete the
call and send the fax. I’ve also included the CLI output of channel
5’s properties, it does show the EC as off. I noticed it says
“Fax Handled: no”, is there something I need to enable in
Zapata.conf or zaptel.conf?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Would txgain/rxgain be the issue?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>CLI Output ------------------------<o:p></o:p></p>
<p class=MsoNormal> -- Starting simple switch on 'Zap/8-1'<o:p></o:p></p>
<p class=MsoNormal> -- Executing [s@from-zaptel-fax:1]
Answer("Zap/8-1", "") in new stack<o:p></o:p></p>
<p class=MsoNormal> -- Executing [s@from-zaptel-fax:2]
Dial("Zap/8-1", "Zap/5") in new stack<o:p></o:p></p>
<p class=MsoNormal> -- Called 5<o:p></o:p></p>
<p class=MsoNormal> -- Zap/5-1 is ringing<o:p></o:p></p>
<p class=MsoNormal> -- Zap/5-1 is ringing<o:p></o:p></p>
<p class=MsoNormal> -- Zap/5-1 answered Zap/8-1<o:p></o:p></p>
<p class=MsoNormal> -- Native bridging Zap/8-1 and Zap/5-1<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>localhost*CLI> zap show channel 5<o:p></o:p></p>
<p class=MsoNormal>Channel: 5CLI><o:p></o:p></p>
<p class=MsoNormal>File Descriptor: 27<o:p></o:p></p>
<p class=MsoNormal>Span: 2<o:p></o:p></p>
<p class=MsoNormal>Extension:<o:p></o:p></p>
<p class=MsoNormal>Dialing: no<o:p></o:p></p>
<p class=MsoNormal>Context: from-internal-fax<o:p></o:p></p>
<p class=MsoNormal>Caller ID:<o:p></o:p></p>
<p class=MsoNormal>Calling TON: 0<o:p></o:p></p>
<p class=MsoNormal>Caller ID name:<o:p></o:p></p>
<p class=MsoNormal>Destroy: 0<o:p></o:p></p>
<p class=MsoNormal>InAlarm: 0<o:p></o:p></p>
<p class=MsoNormal>Signalling Type: FXO Kewlstart<o:p></o:p></p>
<p class=MsoNormal>Radio: 0<o:p></o:p></p>
<p class=MsoNormal>Owner: Zap/5-1<o:p></o:p></p>
<p class=MsoNormal>Real: Zap/5-1<o:p></o:p></p>
<p class=MsoNormal>Callwait: <None><o:p></o:p></p>
<p class=MsoNormal>Threeway: <None><o:p></o:p></p>
<p class=MsoNormal>Confno: -1<o:p></o:p></p>
<p class=MsoNormal>Propagated Conference: -1<o:p></o:p></p>
<p class=MsoNormal>Real in conference: 0<o:p></o:p></p>
<p class=MsoNormal>DSP: yes<o:p></o:p></p>
<p class=MsoNormal>Relax DTMF: yes<o:p></o:p></p>
<p class=MsoNormal>Dialing/CallwaitCAS: 0/0<o:p></o:p></p>
<p class=MsoNormal>Default law: ulaw<o:p></o:p></p>
<p class=MsoNormal>Fax Handled: no<o:p></o:p></p>
<p class=MsoNormal>Pulse phone: no<o:p></o:p></p>
<p class=MsoNormal>Echo Cancellation: 128 taps unless TDM bridged, currently
OFF<o:p></o:p></p>
<p class=MsoNormal>Master Channel: 8<o:p></o:p></p>
<p class=MsoNormal>Actual Confinfo: Num/8, Mode/0x0009<o:p></o:p></p>
<p class=MsoNormal>Actual Confmute: No<o:p></o:p></p>
<p class=MsoNormal>Hookstate (FXS only): Onhook<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Zapata.conf –<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>[channels]<o:p></o:p></p>
<p class=MsoNormal>context=default<o:p></o:p></p>
<p class=MsoNormal>usecallerid=yes<o:p></o:p></p>
<p class=MsoNormal>hidecallerid=no<o:p></o:p></p>
<p class=MsoNormal>callwaiting=yes<o:p></o:p></p>
<p class=MsoNormal>usecallingpres=yes<o:p></o:p></p>
<p class=MsoNormal>callwaitingcallerid=yes<o:p></o:p></p>
<p class=MsoNormal>threewaycalling=yes<o:p></o:p></p>
<p class=MsoNormal>transfer=yes<o:p></o:p></p>
<p class=MsoNormal>canpark=yes<o:p></o:p></p>
<p class=MsoNormal>cancallforward=yes<o:p></o:p></p>
<p class=MsoNormal>callreturn=yes<o:p></o:p></p>
<p class=MsoNormal>echocancel=yes<o:p></o:p></p>
<p class=MsoNormal>echocancelwhenbridged=no<o:p></o:p></p>
<p class=MsoNormal>relaxdtmf=yes<o:p></o:p></p>
<p class=MsoNormal>rxgain=2.0<o:p></o:p></p>
<p class=MsoNormal>txgain=2.0<o:p></o:p></p>
<p class=MsoNormal>group=1<o:p></o:p></p>
<p class=MsoNormal>callgroup=1<o:p></o:p></p>
<p class=MsoNormal>pickupgroup=1<o:p></o:p></p>
<p class=MsoNormal>immediate=no<o:p></o:p></p>
<p class=MsoNormal>context=from-internal-fax<o:p></o:p></p>
<p class=MsoNormal>group=1<o:p></o:p></p>
<p class=MsoNormal>signalling = fxo_ks<o:p></o:p></p>
<p class=MsoNormal>channel => 5<o:p></o:p></p>
<p class=MsoNormal>context=from-zaptel-fax<o:p></o:p></p>
<p class=MsoNormal>group=3<o:p></o:p></p>
<p class=MsoNormal>signalling = fxs_ks<o:p></o:p></p>
<p class=MsoNormal>channel => 8<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p>
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