Chapter 3: Configuration
Configure the interface to Asterisk
Using DAHDI:
You will need to modify the
chan_dahdi.conf
file which is located in the
/etc/asterisk directory in order to configure the essential features of your
card. This file is the configuration layer between DAHDI and Asterisk.
Echo Cancellation:
Echo Cancellation is enabled in chan_dahdi.conf by preceding the
channel variable with a variable called echocancel; for example:
echocancel = yes
channel => 1,2,4,5,7,8,10,11
Echo cancellation is explicitly disabled by setting:
echocancel = no
Note:
Digium does not recommend that users set echo cancellation to
"no."
Digium, Inc.
Page 37