asterisk users - Sep 2004 - creating device=/dev/phone0

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

Hi,

My linuxbox has 2 eth's, one with pppoe for dsl, and also i got an ip_gre
tunnel.  At the time i run asterisk, even i got bindaddr=0.0.0.0, it does
not show any port open for sip (5060), if i change 0.0.0.0 for any ip, next
time i reload, it opens the specific ip, changing back to 0.0.0.0 and
reloading, it keeps the same ip open.

The point is that i cant open all ips i need at the same time.  Why?

Regards,

-=Raul=-