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Troubleshoot issues related to making and receiving calls on your Samsung Galaxy S III

Last Updated: Nov 19, 2014

This article helps troubleshoot making or receiving calls on your Samsung Galaxy S III.

You may have issues with calls if you have:

  • A low signal strength
  • Trouble making or receiving calls
  • Frequently dropped calls

These steps help identify and resolve the underlying cause. After completing each step, test to see if the issue is fixed. If not, continue to the next step.

  1. Verify airplane mode is turned off.

    Airplane mode is a feature that prevents your device from sending or receiving a wireless transmission.

    Turn airplane mode off.

  2. Verify your Samsung Galaxy S® III is connected to the Sprint network using Sprint Zone.

    Be sure your Samsung Galaxy S III is connected to the Sprint voice network to make or receive calls.

    1. Access Sprint Zone.
    2. Swipe from Right to Left to open Device Diagnostics.
    3. Look for Network:
      • Network is in the Passed section: Your phone is connected to the Sprint network.
      • Network is in the Failed or Flagged section: Update the Data Profile.
        1. From Device Diagnostics, tap System Updates.
        2. Tap Update Profile.
        3. After the profile update is complete, tap OK.
  3. Verify if coverage is available at your current location.

    If your Samsung Galaxy S III has low signal strength, see if your location is within Sprint voice coverage on the Sprint coverage map.

  4. Reset the network settings.

    Resetting the network settings reconnects your phone to the Sprint network and does not erase any of your content or data.

    1. From the home screen, tap Phone.
    2. Dial ##72786#.

      Note: The final # may not display.

    3. The phone will restart.
  5. Do you know if other Sprint customers are experiencing the same issue in the same location?

    • If yes or you don't know: Please contact Sprint Customer Care for help.
    • If no: Please find the nearest Sprint Repair center and schedule an appointment so a Sprint technician can further diagnose the issue.

Note: To optimize device performance, be sure your Samsung Galaxy S III is running the most recent device software. Check for software updates.

If you're still having issues, please contact Sprint Customer Care for more help.

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