Gt-sim ?

[Przemolog]

Originally Posted by snidely

I had guessed that's what "attached" meant, but wasn't sure. I guess the key is - how much will that add to the cost of the call? If it's over 29? (Kall8's charge to a UK cel phone), it wouldn't pay.

That's a good question. Maybe they are able to make a kind of "shortcut" so that it won't be necessary to transfer each call twice over Atlantic .
Or they are just going to create "dual number" SIMs. I mean that each SIM will have both a +1 number (maybe it will be technically just a number of a US MVNO) and a +44 Manx number for worldwide use. In this way, it could make it possible to avoid "regular" transatlantic call forwarding (and its costs, of course).
But this is only what I guess/suppose - no real knowledge behind!