said by rizwan602: said by brg:
It occurs at the account level, at their end, based on what they see on their network.
How do you know this for sure?
Because it makes sense?
Otherwise, it would have to be built into every data-capable phone, ever made, in any year, by any manufacturer, from any country, and would be susceptible to being defeated in myriad ways by any nature of rooting hacks, cracks, alternative ROMS...
Nuff said. I'll give you a dollar if you prove me wrong.