sip-NAT and HMR
I posted my problem about "407",thanks for mmouta i get many progress.
i'd like to share what i did to solve the problem.
first disable the sip-nat,then add a HMR to the session agent corresponded to Carrier.
but there are new problem ,as I disabled the sip-nat.
the destination ip address of request line in method" INVITE" becomes the ip address of my core network-interface when i make an outbound call.
obviously,the Carrier won't response normally because it can't find the route .
so i think there must be some conflict in sip-nat and HMR.
So,what should i do next?