How to change port on RedFire?

We are trying to use Openfire/Spark along with RedFire in our office. We need RedFire for the video portion.

Our WAN team isn’t happy about using the default port for RedFire, so I need to look into changing it.

How difficult is this? What files need to be changed? Is it just on the server that settings need to be changed, or both on the server and in the Spark plugin?

Any assistance would be greatly appreciated