[SR-Users] carrierroute issue with rewrite host

Hi, I am using kamailio (only one) as routing engine. I have 2 gateways. Both of them sending calls to kamailio. When i use the carrierroute module i need to change (and succeed) the user ($rU). But, i need to send the call (the invite) back to the gateway that sent me the call from the beginning (it can be either one of those 2). So, my problem is that i don’t want to rewrite the host in carrierroute, just the user. If i leave the rewrite_host field empty, it is considered to be "black list" and drops the call. If i rewrite the host, i can send the call to the second gateway that was not the one that sent the call, and the call drops as well. any ideas how to use carrierroute for changing user only and send the invite back to the gateway that originally sent the call? Thanks, Uri