[Asterisk-Users] forwarding sip

[Giovanni Balasso]

I'm using asterisk to forward some sip incoming calls to ser, I've noticed 
that every call * passes to ser has sip:asterisk at IPADDRESS as header. Is 
there a way to make * pass the number of the caller in sip address to ser. I 
mean if I get a call from PSTN number 123456, how can I pass 
sip:123456 at IPADDRESS to ser?
In docs I found fromuser, username, callerid options, but they affect only the 
from part preceeding real sip address

hope anyone can help me

thanks a lot

ciao
-- 
Giovanni Balasso
giaso at email.it