On Thu, Jun 05, 2008 at 03:00:01AM +1000, Rob Hillis wrote: > Brent Davidson wrote: > > We're currently using Asterisk 1.4.19, Zaptel 1.4.10, > > Oslec SVN, Rhino R4FXO-EC cards, and Snom 300 Phones. > > Why on earth are you running two layers of echo cancellation - hardware > and software? To be honest, I think this is asking for trouble - I've > seen two occasions where having Oslec and hardware echo cancellation has > caused significant problems with audio quality - the usual symptoms are > gaps in the conversation as the hardware cancellation eliminates the > majority of the echo and the software cancellation subsequently > eliminates parts of the conversation.
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. -- Tzafrir Cohen icq#16849755 jabber:[EMAIL PROTECTED] +972-50-7952406 mailto:[EMAIL PROTECTED] http://www.xorcom.com iax:[EMAIL PROTECTED]/tzafrir _______________________________________________ -- 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