How to Isolate Call and Text Issues to Either the WiFi or Cellular Network

Objective

  • Determine if calling issues occur on the cellular network or a WiFi network
  • Test calls over WiFi only and over cellular only

Environment

Procedure

Test call/text over WiFi only, with the cellular radio disabled:

  • Enable Airplane Mode
  • Go to Settings
  • Go to WiFi and turn it On
  • Make sure you are connected to your network with internet access
  • In this state, make and receive a few test calls

Test call/text over cellular only, with the WiFi radio disabled:

  • If you just completed the previous test, make sure to disable Airplane mode first!
  • Go to Settings
  • Go to WiFi and turn it Off
  • Make sure you are in an area where cellular coverage is available
  • In this state, make and receive a few test calls

Additional Notes

  • Airplane mode testing allows us to determine if your WiFi network is suitable for WiFi calling, as it forces your calls to use WiFi only. If your calls at home are usually poor quality, but this test lends to good quality calls, it could indicate that your phone is often resorting to cellular at home, even when you are connected to WiFi.
  • This test will also help you to determine if the cellular coverage in your area may be causing any problems, because you can force your calls to be made over cellular and compare it with your WiFi calling experience.

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