I wish to share my 3G connection with a router using my current android phone without having to buy a new sim card or a dongle of some sort. Is this possible? I am able to tether my phone making it a wifi hotspot but what I want is to only share the internet with a router.
The reason I ask is because I have a small Ubuntu PC in my car (mini ATX) which I want to access from a android tablet. To be able to do this I need the tablet and the PC connected to a router so that I can forward port 5900 and use remote desktop. I also want internet whilst using remote desktop, thus I need the router to have and internet connection.
This is a schematic of what I want to achieve:
? |--> android pad 3G Internet from Phone <--> 3G Router <--| |--> PC
Any advice is much appreciated.