I am not sure where I am failing on the expressions. What I am trying to do is if the source Ip is correct along with the methods I want to send it to a possible of two places one is to a pstn if it is not for the pstn maybe they are trying to reach a user that is registered with the local domain. It works on the pstn. On the local domain even if the src_ip is wrong it still forwards the request as long as it sees the prefix 555555. I want the src_ip to be correct also on the request. -------- snippet -------- if (src_ip==xxx.xxx.xxx.xxx & method=="INVITE" || method=="ACK" || method=="BYE") { if (uri=~"^sip:55555[0-9]{11}@") { strip(5); setflag(1); record_route(); rewritehost("xxx.xxx.xxx.xxx"); #pstn }; if ( (uri=~"^sip:55555[0-9]{7}@") | (uri=~"^sip:55555[0-9]{10}@") ) { strip(5); record_route(); route(2); # local users break; }; } ------------ snippet end ---------------------- Would also like to be able to relay FWD requests Any thoughts ? Thanks Mr. B