Gt-sim bad bad bad

[petkow]

Originally Posted by easyroam-

Your way of the mark!

Roaming sim cards are especially designed and programmed with larger chipsets. A realistic price is more $15/$20 depending on quantity and suppler.

Are you serious?

Obviously not wanting to dispute this with an expert, but just hoping to learn something here... apart from the auto-callback trigger, what makes them so very different from the contract SIM (64K I think) that I have from o2?