Just in case any of you are thinking about upgrading to the Iphone5S over Christmas can I warn you that where as previous Iphones would offer you a working call in an area with 1 to 2 bars of signal it appears that iPhone 5 will not.
So if you want to count on making contact while out deep in the cuds then I would think again about choice of handset.
I find this morning that my lovely new phone is no more than wonderfully sleek and elegant desk ornament. I had this warning from a friend with the same issues yesterday when I was on the way to get my upgrade! Having looked on line today it seems a very common issue.
Because the iPhone5 takes a Nano Sim card you cannot just simply pop it back into an Iphone4 to get out of trouble.
Hope this saves someone else the agro.