[Kamailio-Users] Question about translating 486 to 600

Hello, I have a need to translate a 486 from my asterisk server into a 600 to my ITSP. I haven't figured out a way to force asterisk to send the 600, so I guess I need to rely on Kamailio to do that for me. The problem is that when the INVITE is sent to me, if I return a 486, my ITSP immediately sends a new INVITE to the next gateway in my SRV records. I want the 486 to be a final disposition in this scenario, so I am guessing I need to send 600 for the carrier to not try another gateway.

How would I go about doing this?

failure_route[1]{ if(t_check_status("486")){ t_relay("600","Busy Here"); } }

I know the above example isn't valid... but that is basically what I need to accomplish.

Thanks!