[Asterisk-Users] setting up fromuser

[usman at user.iphonica.net]

hi all,

I have got a problem with asterisk "fromuser" field in sip.conf. Actually 
I have got two asterisk servers communicating over sip. When a user from 
Asterisk Server A calls a specific extension it is redirected to another 
Asterisk Server B and that Asterisk Server B forwards it to a Soft-Switch. 
Now the problem being that the other Soft-Switch takes CLI from the "FROM" 
field of SIP Invite Packet. The Asterisk Server B puts "Asterisk" in the 
from field when redirecting the call to Soft-Switch. If I use the 
"fromuser" field then the CLI works but it is not dynamic. However in originating 
call from Asterisk Server A the "from" field is correct. So my question is 
that how can I make "fromuser" fild in sip.conf dynamic ? Means that 
whatever is coming into ${CALLERIDNUM} should be assigned to fromuser in 
sip.conf. Plz assist me in this problem.

khan.