Tzafrir Cohen wrote: > On Thu, Jun 05, 2008 at 03:40:14AM +1000, Rob Hillis wrote: > >>> If you use a hardware EC (or technically: a span-specific echo >>> cancellation method) the generic Zaptel echo canceller (software-based, >>> OSLEC in this case) will not be used. >>> >> That's not always been my experience with OSLEC. HPEC and the generic >> Zaptel echo canceller seem to work this way, but as I've said, I've had >> two cases where I've had to remove OSLEC to stop it degrading voice >> quality where there is a hardware echo canceller in play. >> > Unless there are some really strange OSLEC patches floating around, of > which I'm not aware, this should not be the case. > > OSLEC uses exactly the same EC interface to Asterisk as the built-in > one and HPEC do. Any chance you didn't actually fully unload zaptel? >
These weren't installs that we'd done - in both instances, they were companies who had bought Trixbox based systems from someone else who had subsequently gone out of business. Granted, I had /assumed/ that OSLEC was causing problems by not disabling itself properly when hardware echo cancellation was found - and I guess that assumption stuck when the removal of OSLEC resolved the problem. _______________________________________________ -- 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