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I have not tried it without any echo cancel. I'll have to try that.
Thank you. I'm not sure about rx and tx gain. I adjusted the values and
it seemed to make a difference.<br>
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<title>Jason Baker - Signature</title>
<p><font face="Arial, Helvetica, sans-serif"><b>Jason Baker<br>
</b><font color="#660000"><span><i>IT Coordinator</i></span></font></font></p>
<font color="#000099" face="Arial, Helvetica, sans-serif"><b>Glastender,
Inc.</b></font><br>
<font size="2">5400 North Michigan Road<br>
Saginaw, Michigan 48604 USA<br>
Phone: 989.752.4275 ext. 228<br>
Fax: 989.752.4276</font><br>
<a href="http://www.glastender.com/" target="_blank">www.glastender.com</a>
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<br>
<br>
Steve Totaro wrote:
<blockquote
cite="mid:ea18e54a0909041207m37ef8dc7k996c5425ebf66bdf@mail.gmail.com"
type="cite"><br>
<br>
<div class="gmail_quote">2009/9/4 Vinícius Fontes <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:vinicius@canall.com.br">vinicius@canall.com.br</a>></span><br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">No
it's not a fact of life. VoIP works as fine as conventional telephony
once it's correctly set up.<br>
<br>
Try echocancel=256 instead of echocancel=yes and also run fxotune
(check the man page). If that all fails, install OSLEC. It's an
excellent free software echo canceller, that works much better than
Asterisk's default MG2.<br>
<br>
<br>
<br>
Vinícius Fontes<br>
<a moz-do-not-send="true" href="http://www.asteriskforum.com.br"
target="_blank">www.asteriskforum.com.br</a> - Informações e discussão
sobre Asterisk e telefonia IP<br>
<br>
----- "Jason Baker" <<a moz-do-not-send="true"
href="mailto:jbaker@glastender.com">jbaker@glastender.com</a>>
escreveu:<br>
<div class="im"><br>
> Well I tried Doug's suggestion and the echo is now better, but
when I<br>
> call an outside analog line I still get some echo. I can hear my
voice<br>
> in the ear piece of the phone with a slight delay. Is this just a
fact<br>
> of life with VoIP, or is there a better way to reduce line echo?<br>
><br>
</div>
<div>
<div class="h5">> Again, for reference, I am using the VPMADT032
echo cancellation<br>
> module attached to a Digium TE121 PCI express card. The incoming
phone<br>
> service is a PRI.<br>
><br>
><br>
><br>
> Jason Baker<br>
> IT Coordinator Glastender, Inc.<br>
> 5400 North Michigan Road<br>
> Saginaw, Michigan 48604 USA<br>
> Phone: 989.752.4275 ext. 228<br>
> Fax: 989.752.4276<br>
> <a moz-do-not-send="true" href="http://www.glastender.com"
target="_blank">www.glastender.com</a><br>
><br>
> Doug Lytle wrote:<br>
><br>
> Jason Baker wrote:<br>
><br>
> language = en<br>
><br>
> group = 1<br>
> echocancel = yes<br>
> echotraining = yes<br>
> signalling = pri_cpe<br>
> switchtype = 4ess<br>
> usecallerid = yes<br>
> context = incoming<br>
> channel => 1-23 Just noted that your system is out of Saginaw.
The<br>
> system below is out<br>
> of Livonia, with an AT&T PRI as well. Note the rx/txgain
entries, it<br>
> may be useful as well:<br>
><br>
><br>
> switchtype=national<br>
> context=pri<br>
> signalling=pri_cpe<br>
> echocancel=yes<br>
> echotraining=yes<br>
> echocancelwhenbridged=yes<br>
> rxgain=-1.0<br>
> txgain=-4.0<br>
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</blockquote>
<div><br>
Just curious. Have you tried turning off all echo can? I RARELY need
echo can on T-1. <br>
<br>
I was also under the impression that rx/tx gain was only for POTS lines.<br>
</div>
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<br>
-- <br>
Thanks,<br>
Steve Totaro <br>
+12409381212 (Cell)<br>
+12024369784 (Skype)<br>
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