Just wondering on those word wide wireless internet cards offered by sprint and At&T, do they block default ports for VPN server running on the machine with the card and do they block remote desktop.

Example: I have a laptop that I will run a sprint or Att card on. Can I run a VPN server on that laptop machine or at least be able to remote into it?

I basically want to be able to either VPN or remote into a machine that is running the wireless sprint/att card.