Swapping Sim card from another network
Is it possible to use a Sim card from another network?
SIM card enables users to use other networks on their phones; you can swap phones and keep your number.
Yes it is possible with most networks except if the handset was bought only to be used on the Orange network. With handsets bought without any Sim card, exchanging the Sim shouldn't be a problem.
However, if it is an Orange phone, there could be
problems. Orange phone software is tailored purposely for use on its network. This means the handset can only be used with Orange phones and it cannot be used on another network unless factory settings are restored by a dealer – this may invalidate the handset warranty.
The other networks often lock their phones so they can only be used with the original Sim card, a practice known as Sim-locking. Your network can provide you with a special code to unlock your phone for use with other Sims, but may charge you to do so.
Mobile Phone Compatibility
Can all phones be used with Apple Mac computers?
No, not all phones can be used with Apple Mac computers. If you're buying a music phone and intend to add tracks saved on your Mac it could be a problem, you can check from the supplier (shop) or at the manufacturer’s web sites for more information. Unless they specify that their model is Mac compatible, it's likely to work with your Apple Mac computer.
What should I do if my phone is stolen?
Call the service provider as soon as possible so it can bar your account.
This will prevent the service provider from charging you with calls made from your phone. Note, however, that you'll still have to pay for any calls made before you notified them.
If you know the 15-digit IMEI number (accessed by typing *#06# into the phone, but sometimes found on the original packaging too), the service provider should be able to block that handset from working on any other UK network making it useless. You may be able to claim for the lost if your phone is insured.