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You can save your voicemail number making it easy to call and listen to your voice messages.
Press the phone icon.
Press the dots in the bottom right corner of the display.
Turn off default voicemail number
Press the indicator next to "Use default voicemail number" until the function is turned off.
Save the voicemail number
Press the field below "Use default voicemail number" and key in (prefix) 5 (your phone number)
Return to the home screen
Press the Home key to return to the home screen.