I have a HAM radio system that needs port forwarding for the following ports: 46100-46122 to be opened on the router. Now what I am trying to to do is setup a mobile internet linked radio system using the internet connection from my IOS device as the internet connection. Because I can not port forward from a mobile cellular network I thought that running a VPN back to my home network might work.

Does anyone know if this is possible and how easy it is to setup. I have tried setting up a VPN on my Swisscom router but at this point can not even get that to connect with my iPhone.

I can provide more information to anyone interested in giving a little help on this subject.

Many thanks

What's your exact setup?
Based on your post, I am guessing:
HAM radio (with some sort of IP communication) -> iOS device (with hotspot / "mobile connection sharing") -> Internet -> ...
Is that correct?

Why do you need a VPN tunnel? if you are sending traffic back to your home router why not just set up a port forward. What protocol is the traffic ?