The zaptel version is SVN-branch-1.4-r4257<br><br><br><div class="gmail_quote">On Thu, Jun 5, 2008 at 2:57 AM, Tzafrir Cohen <<a href="mailto:tzafrir.cohen@xorcom.com">tzafrir.cohen@xorcom.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On Wed, Jun 04, 2008 at 11:02:19PM -0400, John Morey wrote:<br>
> Hello,<br>
><br>
> I've run fxotune<br>
<br>
</div>Of which zaptel version, exactly?<br>
<div class="Ih2E3d"><br>
> at different times but continue to get what seem to be<br>
> strange numbers in /etc/fxotune.conf. It ends up with:<br>
><br>
> 5=7,255,251,251,2,255,255,1,255<br>
> 6=7,255,251,251,2,255,255,1,255<br>
> 7=7,255,251,251,2,255,255,1,255<br>
> 8=9,2,250,253,4,252,0,255,255<br>
> 9=4,0,0,0,0,0,0,0,0<br>
> 10=5,0,0,0,0,0,0,0,0<br>
> 11=0,0,0,0,0,0,0,0,0<br>
> 12=0,0,0,0,0,0,0,0,0<br>
> ports 5-10 have lines hooked up to them. The first four lines seem strange<br>
> when compaired to what others have posted and what ports 9 and 10 have.<br>
<br>
</div>fxotune works by setting the values of some specific registers in a<br>
specific chip used for the FXO adapters. In the "set" mode (-s) it<br>
merely takes a set of values from /etc/fxotune.conf and applies them to<br>
the chips of the Zaptel device in the respective ports.<br>
<br>
In the "tuning" mode (-i or -d) it will attempt to find the best set of<br>
register values for your ports. It does that basically by systematically<br>
applying many possible sets and and checking the echo level with it.<br>
<br>
If nothing is connected to the port, no set of value is better than the<br>
default values (all zeros), and hence those will remain.<br>
<div class="Ih2E3d"><br>
><br>
> Also if I'm reading things right my echo ratios seem to be very<br>
> high. Running "fxotune -d -b 5 -w 1004" gives the following:<br>
> Dumping module /dev/zap/5<br>
> echo ratio = 0.1759 (1960.0 / 11145.0)<br>
> Which I read to be over 17%. This seems crazy. Am I reading this right?<br>
> Where should I start to look for problems?<br>
<br>
</div>An echo canceller is still generally useful for an FXO adapter.<br>
<font color="#888888"><br>
--<br>
Tzafrir Cohen<br>
icq#16849755 <a href="mailto:jabber%3Atzafrir.cohen@xorcom.com">jabber:tzafrir.cohen@xorcom.com</a><br>
+972-50-7952406 mailto:<a href="mailto:tzafrir.cohen@xorcom.com">tzafrir.cohen@xorcom.com</a><br>
<a href="http://www.xorcom.com" target="_blank">http://www.xorcom.com</a> <a href="http://iax:guest@local.xorcom.com/tzafrir" target="_blank">iax:guest@local.xorcom.com/tzafrir</a><br>
</font><div><div></div><div class="Wj3C7c"><br>
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