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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>That’s a new one. I’ve seen that on lines when using
a card without echo cancellers or LEC T1’s. Never with AT&T T1’s.
Make sure you have the newest firmware on your Sangoma card, then try swapping
it out. If you have access to a hammer, it might prove worthwhile to hook it up
and run a MOS score on the line itself. If it comes up low, then you escalate it
with the carrier.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Good luck. That’s an interesting one.<o:p></o:p></span></p>
<p class=MsoNormal><span class=code1><span style='font-size:10.0pt'>--------------------------------------------------</span></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
<span class=code1>Salvatore Giudice</span><br>
<span class=code1>Salvatore.Giudice@VoIPSecurityTraining.com</span><br>
<br>
<span class=code1>VoIP Security Training, LLC</span><br>
<span class=code1>http://VoIPSecurityTraining.com</span><br>
<br>
<span class=code1>848 N. Rainbow Blvd. #1676</span><br>
<span class=code1>Las Vegas, NV 89107</span><br>
<span class=code1>Phone: (702) 979-2906</span><br>
<span class=code1>Fax: (212) 279-2906</span></span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>Porier,
Jeremy M.<br>
<b>Sent:</b> Friday, March 30, 2007 12:39 PM<br>
<b>To:</b> asterisk-users@lists.digium.com<br>
<b>Subject:</b> [asterisk-users] One way intermittent static to PSTN<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>We
are having intermittent problems where the person we call reports
static when we place an outgoing PSTN call. Only the person
called hears static, to us the conversation sounds fine. Never happens on
inbound calls. It doesn't matter what channel you call from (IAX, SIP, or
Zap). We have a Sangoma A108D with hardware echo cancellation with 2
PRIs to Level3 and 2 PRIs to a Nortel Option 61c and then several IAX trunks
running into this box as well. Box is HP DL 385 G2. I've ruled out
bad cables, bad port on sangoma and bad port at Level3 rack. When under
load and while the problem is occurring zttest is never less than 99.987793 and
is usually 100. Nothing showing up in any logs anywhere. Not sure
it is related, but I'm noticing a very loud click when an incoming or outgoing
call is initiated that I don't remember in the past.</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I'm
stumped. Anyone ever experience this? Suggestions for further
trouble shooting?</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks,</span><o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Jeremy</span><o:p></o:p></p>
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