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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Do you have reinvites enabled? Are you
running this over a linksys four port SoHo router/switch or something?<o:p></o:p></span></font></p>
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<p><font size=2 color=navy face="Times New Roman"><span style='font-size:10.0pt;
color:navy'>Thanks,<br>
Steve Totaro<br>
<a
href="http://www.asteriskhelpdesk.com/component/option,com_wrapper/Itemid,37/">http://www.asteriskhelpdesk.com</a><br>
KB3OPB<br>
</span></font><font color=navy><span style='color:navy'> </span></font><o:p></o:p></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Deepak Naidu<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, June 09, 2007 4:54
AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [asterisk-users] Bad
Echo between SIP calls</span></font><o:p></o:p></p>
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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>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Steve I understand your theory. We have Poycom 501 phones.
Prior upgrading to PRI we were till date using 4 analog lines connected with
TDM card from digium & no echo for pure SIP to SIP lines.<o:p></o:p></span></font></p>
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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>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Now I have TE212P which had onboard echo cancellor.<o:p></o:p></span></font></p>
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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>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I am trying make myself clear before I blame on any network.
B'cos for sure we have a spegati of networks & no QoS. Also the
intresting thing is if I call from one extension to other dialing the main line
& then extension the call is crystal clear. but when dialing a direct
extension its a hell of echo.<o:p></o:p></span></font></p>
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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>
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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>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Deepak<br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Stephen Davies
<stephen.l.davies@gmail.com></span></i></b> wrote:<o:p></o:p></span></font></p>
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<blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On 09/06/07, Deepak Naidu <DEEPAK_NAI@YAHOO.COM>wrote:<br>
> Ya, I have done that, below is zapata.conf. Also we had an TMP card with<br>
> analog lines. & SIP cals were great on them. & now when we
switched over.<br>
> SIP calls have echo.. which shouldnt be at all.<br>
<br>
If you are getting echo on pure SIP to SIP calls, there's no point in<br>
fiddling around with your zapta.conf. That file is for configuring<br>
chan_zap, which is used to talk to Zap/ channels. Your calls are SIP<br>
to SIP so the zap channel and your PRI aren't being used at all.<br>
<br>
SIP calls are "pure digital" 4 wire lines so no electrical (Hybrid)<br>
echo will be present. The phones should not generate echo. If they<br>
are, they are presumably nasty phones (what kind are they?) and you<br>
should get properly made phones.<br>
<br>
Steve<br>
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</blockquote>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Yahoo! Answers - Get better answers from someone who knows. <a
href="http://uk.answers.yahoo.com/;_ylc=X3oDMTEydmViNG02BF9TAzIxMTQ3MTcxOTAEc2VjA21haWwEc2xrA3RhZ2xpbmU">Try
it now</a>.<o:p></o:p></span></font></p>
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