Device Guides

Apple iPhone 4

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iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.
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It isn't possible to leave a voice message on my mobile phone

This troubleshooting guide will take you though a number of possible causes
to help you find a solution to your problem.

We found 3 possible causes:

  1. Your voicemail inbox is full
  2. Calls are not diverted to your voicemail
  3. Your voicemail has been turned off
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