#----------------------------------------------------

        #7777 CALL ROUTING

        #-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

        if(is_method("INVITE") && (uri=~"sip:7777")){

                    rewritehostport("192.168.1.10:5060");

                      route(1);

         exit;

         }

         #----------------------------------------------------

at this rule, the invite is going to 192.168.1.10 with the host part  as abc.com, we want to send with another domain.

Instead of abc.com domain, I want to use 192.168.1.10 domain ; 

To:<sip:7777@abc.com>

To:<sip:7777@192.168.1.10>