How To Edit SIM Phone Number

If you got a blackberry from someone and when you are making calls, you are seeing a number apart from yours where it says 'your number', this can be adjusted by changing the SIM phone number.

To do this go to options, advanced options, SIM card. You will then see phone numbers, scroll to that area and press menu key, then select edit SIM phone number. You will then need to enter your 10 digit telephone number and save