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• If your SIM card supports more than one phone number, but you have only one phone number, verify that the phone number is set
as the primary number.
My phone number appears as Unknown in the phone
Try changing the phone number on your SIM card to change how your phone number appears in the phone. In the device options, click
Advanced Options. Click SIM Card. Click the trackwheel. Click Edit SIM Phone Number. Type your phone number. Click the
trackwheel.
Note: If you change the phone number on your SIM card, you do not change the phone number that your BlackBerry® device uses to
make and receive calls.
I cannot check my voice mail
If you have more than one phone number associated with your BlackBerry® device and you are trying to check your voice mail using a
shortcut key, your device calls the voice mail access number for your active phone number.
Try checking the voice mail for your alternate phone number.
I cannot join a call
If your BlackBerry® device is associated with an enterprise voice phone number, you cannot join a call that you make from or receive to
your enterprise voice phone number with a call that you make from or receive to the phone number provided by your wireless service
provider.
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