Changing the SMS center number
We've been asked, after configring a new Gevey Card, how to manually change the SMS center number on hte iPhone. First, it should be automatic as the number is stored on the new sSIM card, so you shouldn't have to do this, but, if you do, here is a brief explanation:
If after you changed you SIM card, you can't text, you should confirm the SMS center number you have on your device.
To check what center number you have, just dial: *#5005*7672#
If the center number is not correct, you can change it by dialing **5005*7672*NEWNUMBER# and press call
Just remember, only change it if you can't send SMS. And you'll have to have your network correct gateway number (it changes from network to network).