One thing I would like to know is can you lock a 3 phone to 2G like you can with Vodafone 3G?
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I think this is what i'm talking about. The software works for nokia 3g symbian phones only. What it does is it makes the sim card see only a 2g phone so the 3 network is forced to jumping over to o2.
Don't know if that answers your question mate, I just have it on my phone and change over whenever i have no reception.