Quite honestly, I am not even sure how to search for this issue. I am using BulkVS and they hand the call off from one location to another as they see fit. If I use a specific IP address, all is fine. If I use their FQDN, the call drops when the call is moved.

My issue with having calls go to a specific IP address is that in Dallas, all would be fine. However if everything failed over to NYC, it wouldn't make sense for me to have phones register to Fusion in NYC and then explicitly send calls back to Dallas. I enabled track-calls on the external profile hoping that would allow me to use their FQDN, but I had no luck.

Is anyone aware of how I would allow all this to work?