Turning NFC on my mobile phone on or off
Using voice control (S Voice) on my mobile phone
Choosing a message tone for my mobile phone
Transferring files between a computer and my mobile phone
Cancelling all diverts on my mobile phone
To make a video call both phones need to support 3G and be connected to a 3G network.
Make a voice call and ask the recipient if the other phone supports 3G and if it's connected to a 3G network.
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