Hello,

I have an AIS post-paid 3G account. Will be travelling to Europe and want to get pay as you go SIM there - can I? If not, how can I go about unlocking the phone?

If I choose not to remove the SIM, can I simply put it in Airplane mode and use wifi without getting charged while abroad?

Thanks.

You should have no problem. You can use WiFi anywhere. >Settings>Be sure Data Roaming is disabled.

If you bought the phone from AIS it will be factory unlocked. You can use any SIM.

MKAsok - I did get it from AIS and just assumed it would be locked to prevent users from doing what I plan to do when travelling. Any idea why?

Thanks!

Sorry just to clarify - any idea why they haven't bothered to lock it?

I believe it's illegal in Thailand for networks to lock phones to their own service. In any event, none of the Thai networks lock their phones.