In article <[EMAIL PROTECTED]>, Matthew Fredrickson <[EMAIL PROTECTED]> wrote: > > You might try turning off echo cancellation to see if your D-channel > performance improves. That would be a good test to tell if you should > look into perhaps getting either a faster CPU or a hardware echo > canceller. It's possible that you may be saturating your poor 1.3 Ghz > CPU by doing echo cancellation for too many channels on it.
Yes, I tripped over this one a while ago. I couldn't understand why my 533MHz Celeron test system with a TE405P would start producing loads of D-channel errors as soon as I got to about 6 or 7 calls through it. Eventually I discovered echo cancellation was turned on, causing the 1ms interrupt service routines to take more than 1ms to execute! It's much happier with no echo cancellation, although I haven't tried running all 120 channels at once! Cheers Tony -- Tony Mountifield Work: [EMAIL PROTECTED] - http://www.softins.co.uk Play: [EMAIL PROTECTED] - http://tony.mountifield.org _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
