On Jan 11, 2007, at 8:53 PM, Ken Williams wrote:

I tried to be thorough, but of course left fxotune out. I did try fxotune, it resulted in something like 9,0,0,0,0,0,0,0 for each fxo (I'm not at work now, I can post the results if it'll help).

Make sure you run fxotune from 1.4 (or trunk). From your output values, it looks like you just tried the 1.2 version of it. The 1.4 version sets the remaining values. It got a pretty considerable rework between 1.2 and 1.4 and runs a lot better.

So here's your order of operations:
1.) Run 1.4 (or trunk) version of fxotune on your lines.
2.) Make sure your init scripts have fxotune -s in it (to set the values when you reboot).
3.) Use the MG2 echo canceler from 1.4.
4.) And if all else fails, try the aggressive suppressor option. I recommend that as the last and final option since it's a really non elegant way of fixing it.

Matthew Fredrickson


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