Problem with IVR Barge-In for PSTN calls

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Problem with IVR Barge-In for PSTN calls

Postby krooto » Thu Jan 28, 2016 3:33 am

Hi!

My configuration is Asterisk 11 + OpenVox D230E E1 card + UniMRCP + Speech recognition server.
I implemented voice barge-in during IVR playng promt ( it stops and start recognize ).

Everything working perfectly when I call from SIP phones locally connected.

When I call from analog phones from PSTN via E1 trunk I can see that speech recognition server gets its prompt. So it stops and start recognize self :)

I suspect echo on analog-digital conversion for such calls.

I switch on oslec echocancelation alghoritm in DAHDI config for this trunk but nothing changed.

I don't know what to do to fix that.

Any recomendations would be appreciated!
krooto
Newsterisk
 
Posts: 1
Joined: Thu Jan 28, 2016 2:48 am

Re: Problem with IVR Barge-In for PSTN calls

Postby penguinpbx » Mon Feb 01, 2016 6:42 pm

Do you notice echo when calling from analog to SIP ?

Do you have a card with hardware echo can that you can try ?
penguinpbx
Oldsterisk
 
Posts: 79
Joined: Mon Dec 10, 2007 9:31 am
Location: Denver, Colorado, USA


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