[asterisk-users] Zaptel -> DAHDI: now echo

[Jeff LaCoursiere]

On Tue, 18 Aug 2009, Kevin P. Fleming wrote:

[snip]

>>   Note: It is *mandatory* to configure an echo canceler for the
>>   system's channels using dahdi_cfg unless the interface cards in use
>>   have echo canceler modules available and enabled. There is *no*
>>   default software echo canceler with DAHDI.
>>
>

Why is this by the way?  Is there some advantage to NOT having one of 
these modules loaded by default?

j