[Asterisk-Users] snom phone with asterisk and vocal

[smadi]

hi;
i am using snom 200 and i have a sip registrar running on one machine 
called xyz.com with a provisioned user called 1000 at xyz.com and i have an 
asterisk box on another machine.  I dont want to use the asterisk box as 
my sip registrar and would like to use the other machine.  How can 
integrate this setting or in other words how should my sip.conf and 
extensions.conf look like?

thanks
ms