Device Guides

Apple iPhone 4S

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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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My mobile phone doesn't ring when receiving calls

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

Apple iPhone 4S (iOS8)
Apple iPhone 4S (iOS8)

We found 2 possible causes:

  1. The ring volume has been set to 0
  2. Silent mode is turned on
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