Hi there,
The 9330 does not have mobile hotspot capabilities, so no, you cannot setup the 9330 as a hotspot/router. The wifi setting is so that you can connect to a wifi network on your phone (helps to save data).
In terms of cost, be aware that unless Verizon allows you to tether on your plan, you can end up being charged for that data you use. Usually things like unlimited data only pertain to the phone.
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