We have sheme: +-----+ +----+ +-----+ | GW1 |-->| FS |-->| GW2 | +-----+ +----+ +-----+ <gateway name="GW1" ip="X.X.X.X"> <param name="caller-id-in-from" value="true"/> <param name="realm" value="domain.net"/> <param name="from-domain" value="domain.net"/> <param name="username" value="1"/> <param name="password" value="1"/> <param name="register" value="false"/> </gateway> <gateway name="GW2" ip="X.X.X.X"> <param name="caller-id-in-from" value="true"/> <param name="realm" value="domain.net"/> <param name="from-domain" value="domain.net"/> <param name="username" value="1"/> <param name="password" value="1"/> <param name="register" value="false"/> </gateway> When call from GW1 to GW2 FreeSWITCH recv INVITE from GW1: From: "Alex"<sip:alex_gusak@domain.net>;transport=UDP;tag=7552bb34 To: <sip:XXXXXX@domain.net>;transport=UDP and send INVITE to GW2: From: "Alex" <sip:alex_gusak@X.X.X.X>;tag=BK71NZ3yZvptK To: <sip:XXXXXX@domain.net> where X.X.X.X IP address FreeSWITCH. How to make that pass in the header From: the domain name domain.net? -- Alex Gusak