My phone number appears as Unknown in the phone application
If your BlackBerry® device uses a SIM card, try changing the phone number on your SIM card to change how your phone number appears in the phone application. On the Home screen or in a folder, click the Options icon. Click Advanced Options. Click SIM Card. Highlight the phone number. Press the Menu key. Click Edit SIM Phone Number. Type your phone number. Press the Enter key.
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