Is this a NAT issue?
The network is like this：
alice--192.168.199.214 company ip--116.228.89.198 kamailio IMS(cloud server)--120.76.118.128 bob--192.168.199.124
I can see INVITE was sent from 116.228.89.198(company ip) to 120.76.118.128(kamailio IMS), then 120.76.118.128(kamailio IMS) reply a 100 trying to 116.228.89.198(company ip), after that 120.76.118.128(kamailio IMS) sent INVITE to 192.168.199.124(private ip of bob), because 192.168.199.124 is a local ip address, I guess kamailio IMS in the public ip address can't find a route to this address. So, bob did not receive this INVITE message from alice.
Is my analysis right? What should I do to let the IMS run properly?
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