asterisk users - Jul 2005 - (en|dis)able CW within /etc/asterisk

I know that CW can be turned on and off with "database put CW" which
updates
my /var/lib/asterisk/astdb.

However, I would also like to be able to configure this through the flat 
config files in my /etc/asterisk, is this possible? I'm using 
CVS-v1-0-06/24/05-14:34:05.

TIA for any help.

--
Tim Wesemann