jockmacm wrote:Are SIM Cards in tablets that are not cell phones the same as SIM cards in phones? Are they interchangeable?
While the SIM cards are the same, they are not interchangable.
The back-end programming for a SIM in a smartphone is different than that for a tablet. I have used the SIM from my smartphone in a tablet, and it worked (but this is not true for all smartphone data plans). I have tried the SIM from my tablet in an unlocked cell phone and it would not work because it was not provisioned for voice and SMS services...