[Serusers] SER - change To header field

Hi, I have the following config for my college project: - SIP Phones (2.2.2.1) --> SER (2.2.2.2) --> Asterisk (2.2.2.3) --> Clarent C5CM (1.1.1.1) When I make a mobile phone call, I get the following debugging message from Asterisk as below: - Sip read: ACK sip:0193839090@mydomain.com SIP/2.0 Record-Route: <sip:0193839090@2.2.2.2;ftag=i7hY4i2wlrWTpUf0;lr=on> Via: SIP/2.0/UDP 2.2.2.2;branch=0 Via: SIP/2.0/UDP 202.187.27.51:5060;branch=z9hG4bKp7kxPljBf Max-Forwards: 69 User-Agent: PA168S From: "20004" <sip:20004@mydomain.com>;tag=i7hY4i2wlrWTpUf0 To: "0193839090" <sip:0193839090@mydomain.com>;tag=as65d5f808 Call-ID: 8sSYKxJJddC1CAmz(a)2.2.2.1 Contact: <sip:20004@2.2.2.1:5060> CSeq: 1 ACK Content-Length: 0 Is it possible to rewrite the "To Request-URI) to something like sip:0193839090@1.1.1.1 Regards, rootlinux __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new Resources site http://smallbusiness.yahoo.com/resources/