If I take my sim card out of my iphone when travelling overseas, will I be charged?

I'm off to Thailand tomorrow and have an iPhone 5, locked to Telstra. I'm wanting to take my phone over to use as a camera and then when I get back to my hotel at night upload the photos to instagram using the hotel's Wi-Fi. I was wondering if I take my sim card out and leave it at home (in Australia), is there any way that I will be charged for taking it overseas?

No you wouldn't be charged but you also don't have to remove the SIM. Just put it on Airplane Mode which disables the cell & data radios (& Wi-Fi though that could be put back on afterwards) & use it as you would. When your return turn off AM & go on as normal.

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