2012/1/12, Kevin P. Fleming <kpflem...@digium.com>: > On 01/12/2012 06:39 AM, Olivier wrote: >> Hi, >> >> I'm having some questions related to echo cancellation configuration >> on a Digium board enabled systems (B410P, TE420, TE420B, ....) for >> cases when a hardware ech canceller is present or not. >> >> I read in TEXXX manual that when setting echocancel=yes in >> chan_dahdi.conf on a VPMOCT64-equiped system, 128ms hardware echo >> cancellation was enabled. >> >> 1. I'm correct thinking that it is then impossible to switch from >> hardware to software echo can without removing the VPMOCT64 module >> itself ? >> 2. Does the same also apply to HA8 and its VPMOCT032 module ? > > With DAHDI 2.6 (and possibly 2.5), it is possible to override the > configuration and apply a software echo canceller to a channel even if > it has a hardware one. With prior versions, yes, the echo cancellation > module would have to be physically removed (or disabled using a > parameter to the kernel module).
Then, maybe a line mentioning that in the next User Manual edition would be perfect. Thanks for replying. > > -- > Kevin P. Fleming > Digium, Inc. | Director of Software Technologies > Jabber: kflem...@digium.com | SIP: kpflem...@digium.com | Skype: kpfleming > 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA > Check us out at www.digium.com & www.asterisk.org > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users