I'm a long time user of Digium carts and stupid me i wanted to give Sangoma a try.<br>We got Sangoma A400 with 6 FXO ports.<br><br>Asterisk version: 1.4.35<br>Zaptel version: 1.4.11<br>Wanpipe version:
3.5.11<br><br>we tried to use fxtune but looks like it wont work with Sangoma card, ( please correct me if i'm wrong)<br>Echo is really bad and also we have background noise on all lines.<br>We tried both mg2 and oslec echo canceler.<br>
was wondering if you have any experiense with that because Sangoma tech support is not helpfull, just look at their response:<br><br>"As you mentioned you have tried Oslec algorithms for echo cancellation.Which<br>
is a good way to solve echo cancellation issues. If that is not woking for<br>
you you may want to upgrade to hardware echo cancellation......with cards<br>
which have echo cancellers.<br>
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Hope this helps.<br>
<br>
-Sri"