I have an unlocked Sprint Blackberry 9930 I purchased from Sprint and periodically have need to use a pay as you go SIM card from T-mobile or AT&T (right now I use a TMO). The SIM information in the phone settings is correct, it makes calls and they show up as the correct phone number on the receiving phone, but on the call screen of the 9930, "My Number" remains the Sprint phone number originally assigned to the phone. I have an old AT&T 8800 which I tried the TMO SIM in and everything works as expected. A friend also has a Sprint 9930 which we popped the TMO SIM into, and there is works as expected as well. Is there some reason why "My Number" does not change to the TMO SIM number when the SIM is inserted into my 9930? I guess it's not the end of the world, but it is annoying. Any tips would be appreciated.
