[nonlinearly]

Hi,
I am reading a book about asterisk and it uses a CLI command: CONSOLE DIAL
But it responses that this command does not exist. I searched on internet and I found that through the file modules.conf must be loaded chan_oss.so. I open the modules.conf in vi editor and indeed the chan_oss.so had noload in front of it. I change that to load but unfortunately did not happen anything. Then I thought perhaps there was not this file but I found it in the directory /usr/lib/asterisk/modules.
The next step I suppose is to find if the module really load when asterisk load...
How can I figure out this...
Thank in advance
And something else... I read somewhere that this module relates with the sound card drivers...