Prepaid Sim Card in the UK

[Rooboy52]

I am going to the UK. Can I buy a prepaid simcard for my iphone4? Does any one have any advice on what one to buy. I want to be able to call Australia?

 

[milamber]

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You should either get a lebara or lyca prepaid sim. Those guys are international calling specialists so their rates are way cheaper than the conventional big networks