[Asterisk-Users] creating device=/dev/phone0

[Sys. Concept Inc.]

I'm staring with Asterisk and want to setup it up (at the moment) as
simple answering machine different message will be plaid between 8am -
5pm and different after hours.  I'll add extensions later on.  
I've Supira 3000.

I was reading wiki page and to my understanding I have to place
device=/dev/phone0  in phone.conf (actually it is there so I uncommented
it).  

Though I couldn't find any instructions how to setup correctly the
device phone0 in /dev directory.
Any hints or good links would be appreciated. What other configuration
file do I need to edit at this point?

-- 
#Joseph