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If you want to try and get it working try reading through
<a class="moz-txt-link-freetext" href="http://lists.digium.com/pipermail/asterisk-users/2006-February/147198.html">http://lists.digium.com/pipermail/asterisk-users/2006-February/147198.html</a>.&nbsp;
I had a tough time stamping out echo to far-end analog pstn connections.<br>
<br>
Stagg Shelton<br>
<a class="moz-txt-link-abbreviated" href="http://www.oneringnetworks.net">www.oneringnetworks.net</a><br>
<br>
Imran Ahmed wrote:
<blockquote
 cite="midf929a6640603012056i6d7612b7ta9312a5c6c2ce6bb@mail.gmail.com"
 type="cite">
  <pre wrap="">Use:
modprobe wct4xxp vpmsupport=0

On 3/1/06, Aaron Daniel <a class="moz-txt-link-rfc2396E" href="mailto:amdtech@shsu.edu">&lt;amdtech@shsu.edu&gt;</a> wrote:
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  <blockquote type="cite">
    <pre wrap="">Does anyone know how to disable the VPM in software rather than removing
the card altogether?  The canceler isn't working as well as the software
cancelers were.

Aaron
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