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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We are experiencing random talk off events when we hear a
loud volume event on the PSTN side of our calls. We do not always hear
the spurious DTMF, but I can see it in the console when I have the debug and
verbose levels turned up. We do however always have the associated brief
periods of silence that immediately follow. Sometimes they are only a
matter of seconds, other times they can be as long as a minute. We hear
it most often if the remote party is on a cellular phone with a lot of
background noise, or if a loud noise happens during the call. Neither
party can hear the other when this happens. It almost reacts like an AGC
circuit is muting the call.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We are using a Digium TE411P quad-span T1 card on
1.2.5. I called Digium support and we have played with the </span></font><font
size=1 face="Courier New"><span style='font-size:9.0pt;font-family:"Courier New"'>VPM_DEFAULT_DTMFTHRESHOLD
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'>in the WCT4XXP.C driver as recommended, and all the RELAXDTMF and GAIN
settings in Zapata.conf are set according to their recommendations.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Has anyone else experienced this, and if so, what have you
done to correct it?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoAutoSig><em><i><font size=5 color=blue face="Freestyle Script"><span
style='font-size:18.0pt;font-family:"Freestyle Script";color:blue'>Andy
Servetas</span></font></i></em><font size=5 face="Freestyle Script"><span
style='font-size:18.0pt;font-family:"Freestyle Script"'><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 color="#0057a6" face=Verdana><span
style='font-size:10.0pt;font-family:Verdana;color:#0057A6'>CTI Support Engineer</span></font><o:p></o:p></p>
<p class=MsoAutoSig><font size=2 color="#0057a6" face=Verdana><span
style='font-size:10.0pt;font-family:Verdana;color:#0057A6'> </span></font><font
size=2 color="#0057a6" face="Century Gothic"><span style='font-size:10.0pt;
font-family:"Century Gothic";color:#0057A6'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color="#0057a6" face="Century Gothic"><span
style='font-size:10.0pt;font-family:"Century Gothic";color:#0057A6'>Dirigosoft
Corporation</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
color="#0057a6" face="Century Gothic"><span style='font-size:10.0pt;
font-family:"Century Gothic";color:#0057A6'>Portland</span></font></st1:City><font
size=2 color="#0057a6" face="Century Gothic"><span style='font-size:10.0pt;
font-family:"Century Gothic";color:#0057A6'>, <st1:State w:st="on">ME</st1:State></span></font></st1:place><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#0057a6" face="Century Gothic"><span
style='font-size:10.0pt;font-family:"Century Gothic";color:#0057A6'><a
href="http://www.dirigosoft.com/" title="http://www.dirigosoft.com/">www.dirigosoft.com</a>
</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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