Using Vitelity and IP authentication to make outbound calls.
My firewall translates the source port of outgoing packets.
The destination port that Vitelity sends trying, ringing and 200 OK to is the source port of my outgoing invite, which is what I want.
I have rport set in the via header.
However when Vitelity sends a BYE to me it’s not sent to the invite source port, but to 5060, and therefore my firewall blocks that packet.
How do I force subsequent incoming requests like BYEs to be sent to the source port of the initial invite?