RTSP protocol over InTouch

Dear,

Would it be possible to make the RTSP protocol available over InTouch?
We can access the webGUI of the IP camera connected a Peplink MAX BR1 Mini and we can remotely view the streams on a not privately hosted InControl.

However our company privately hosts InControl, which causes some ports to be blocked and the stream not to come through via the http(s) protocols.
We are not sure which ports/protocols the IP camera is using in the background.
Making RTSP specifically available would allow our ICT department (if I am correct?) to open only this port. Different brands of IP cameras have differently implemented webpages, so this would make it a bit more standard.
This would maybe also allow us to record the stream on a remote NAS.

Using two Peplink devices and setting up a SpeedFusion vpn is not possible in our case because we want to access the footage behind our companies firewall with creating a separate network ourselves.

Many thanks in advance.
If you would have any other recommendations, please let me know.

Kind regards,
Maarten