[Asterisk-Users] slight echo on incoming call

[Gary Carr]

Running CVS-HEAD-04/12/05-16:39:24 on CentOS 4.0 final installation. I am
hearing a brief echo on our Cisco 7960 phones when a incoming call is
answered. After a few seconds of conversation the echo disappears. There is
no echo on outbound calls or transferred calls. After a search of the
mailing list, wikki, and google I have tried the following to no avail.


echocanel=yes as well as 16, 32, 128, and 256
echotraining=yes as well as 800
echocancelwhenbridged=yes

I have also modified the rxgain= and txgain= settings.


Short of recompiling the zaptel with agreessive echotraining can anyone
suggest some other things I may be missing?



Thanks,


Gary