HT3574 If my iphone already connected to a wifi network like my home network, can I use internet tethering without using my limited data?

Question

I don't want an answer like "Google it" or to have take an Hour drive to the Apple store for this question.
Considering when you are connected to Wi-Fi, your data does not get spent when you use the internet on your phone.
Can I run the Connection from my Phone to a Computer without using my Data?

Answer 1

You misunderstand me.  My IT department neither condone, nor condemn my actions.  I tried to connect my company bought kindle to my iphone to use it as a gateway (because it has no ability to accept proxy details).  I noticed that every time I created a personal hotspot on my phone it would disconnect from from the wireless and switch to 3G.  I came looking to see if I was doing something wrong and discovered it is not intended to work in the way that I thought it would.
I work for a college and a large part of my role is investigating technology, discovering what works with current systems, including what needs to be changed or modified to work with what we have in place already.  This is usually due to demand from students but also occasionally staff.  Part of this role includes making sure that there aren't work arounds (like I was trying above) that could be circumnavigating our security.  I've found it interesting to try and stay one step ahead of the next batch of fresh and shiny minds that like to prod and poke the network.
TL;DR I answered about 4 or 5 personal and corporate tech related questions in one foul swoop!  Thank you for your help.