[SR-Users] Handle '486 busy here' from upstream carrier

Hi All, Asterisk><kamailio 3.0.2><sip carrier I see normal tansactions until the carrier send back a '486 Busy Here' then kamailio sends an 'INVITE SDP', then I get a '100 trying' from the carrier then a '482 Loop Detected" from the carrier. Shouldn't kamailio relay the 486 to the original invite server and not send SDP? I'm guessing I'm not handling 486 propperly in my config: http://pastebin.com/crfMe81D Here is a pastebin of the call graph: http://pastebin.com/rnQZDyFU I was thinking about including this in my failure route: if (t_check_status("486")) { append_branch(); t_relay(); } Would that do any good? Thanks. JR -- JR Richardson Engineering for the Masses