| | Re: iPhone 4S
If it's on, it'll get used as a priority over texting... as to not subtract from your text message allotment, or the text message allotment of the recipient.
It uses data only.
It's not something you actually have to do anything to use... the device will make the decision to use it or not based on the recipient you're sending to.
It doesn't take any resources if turned on. There's absolutely no downside.
Last edited by penguin3107 : 10-19-2011 at 03:06 PM.