[iPad] Re wifi and 3g

 

Hi I am going to a conference next week and they will not have free wi fi so have bought a 3gb sim valid for 30 days. When I have access to free wifi can you turn off the sim card so you are only using the free stuff? And then turn it on when no free wi fi about? For example have wi fi at home and dont want to be using the pay as you go plan? THanks for the help. Am in Australia by the way. Chris

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