On Thu, Sep 25, 2003 at 11:56:04AM +1000, Shaun Ewing wrote: > > ----- Original Message ----- > From: Chad R. Graham > > >For the first 15 seconds of a call I get echo on the ata 186 side only. I > >assume after that the echo canceller kicks in but is there any way to make > it > >happen faster? > > Same thing here - except we're using Cisco 7960 and 7940 IP phones. > > We're getting used to it, the main thing is that the remote caller doesn't > hear it (which they don't). A person visiting our office and using the phone > may get a bit of a surprise though. > > Incoming calls it's not an issue, as the caller would have already gone > through the IVR/auto attendant and presumably the echo cancellation has > already kicked in before reaching the operator. > > A related question for those reading this post - is echo cancellation an > issue with ISDN? I've thought of converting the POTS lines to a couple of > BRI lines - but if echo is still a problem then I'll leave it until we > actually need the extra lines.
I've heard from a user on this list that: 1. there is some echo using ISDN4Linux 2. chan_capi removes the echo 3. you can only use one card with chan_capi Others on the list can correct me/them, I want to know the real story... cheers, Woody _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users