question about phone use & net use

[nursemm05]

I did search but I don't use Verizon or the Incredible so I didn't find what I was looking for. I have a co-worker who is wanting to know if she can use her phone as a hot spot for free (I told her more than likely yes) and also be able to use her phone if something were to come up. I asked her if she had an internet connection on her phone would it also ring and she told me she didn't know. Of course I can't test or figure this all out for myself because I don't have Verizon or the phone. Does anyone here know? I'm sure someone does!