You need hardware echo cancel card such as sangoma 104d card to do hardware cannel to fix the bad echo problem. Software solution is not powerful enough at all.
Best Regards Matt ____________________________________________ High Performance Gigabit Clustering Appliance http://www.xgforce.com/loadbalancer.html eClustering Service http://www.xgforce.com/eService.html Gigabit 3U Tera Servers http://www.xgforce.com/teraserver.html Gigabit 2U Servers http://www.xgforce.com/server2u.html Gigabit 1U Servers http://www.xgforce.com/server1u.html __________________________________________________ ----- Original Message ----- From: "Pisac" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[email protected]> Sent: Saturday, January 14, 2006 7:56 PM Subject: [Asterisk-Users] Ugly echo cancel, with Bristuff/Zaphfc > I'm using bristuffed Asterisk with ISDN/ZAPHFC > I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in > zapata.conf, but without echocancel I have bad (incoming) echo > Through PSTN/FXO sound is ok with or without echocancel. > > I tried other echo cancellers (in zconfig.h) two times: > > ECHO_CAN_KB1 (this was default) > ECHO_CAN_MARK2 > ECHO_CAN_MG2 > > after any change I compiled (make clean all && make install) all drivers > which are bristuffed, without recompiling Asterisk (should I?), but... > > ... I always have EXACTLY same (ugly) sound and same (appearing of) echo > cancelling. > > Seems to me that echo canceller do not changing no matter what I choose > in zconfig.h. This must be some bristuff echo cancel "patch" to zaptel > source? Before I bristuffed Asterisk, I was playing with zconfig.h and I > remember that difference between echo canceller were very obvious. > > Anybody have some knowledge about bristuffed echo cancelling? > > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > Asterisk-Users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
