Setting up WiFi Calling on Android

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Illustration of woman standing and enabling wifi calling on her phone

Setting up Wi-Fi calling on Android is easy. First, check whether the provider you are with has the WiFi Calling feature (US Mobile offers it on our GSM LTE network). Then follow the steps below to enable WiFi calling on your Android device.

How to turn on WiFi Calling

To set up Wi-Fi calling on most Android phones:

  1. Go to Wireless and Network Settings.
  2. Select More or More Networks
  3. Find Wi-Fi Calling and turn it on

Your phone is now ready for Wi-Fi calls. You’ll want to configure your Wi-Fi preferences for calling now.

Setting WiFi Calling Preferences

To set your calling preferences:

  1. Click on Wi-Fi calling (not the green slider button)
  2. Click on Connection preferences
  3. Choose from one of the options below:
    • WiFi preferred—this will make the phone connect to WiFi when there is both cellular and WiFi
    • Cellular preferred—this will make the phone connect to cellular when there is both cellular and WiFi
    • Never use cellular network – Your phone will only use Wi-Fi networks for calls. 

Learn more about how WiFi calling works over here.

  1. Am using a Galaxy S5. Went into More Networks, then Wi-Fi Calling and switched it on (was disabled, now enabled) but gives me ER05 – Invalid SIM

  2. Useless. Should have what versions of android are needed or anything else required. My phone has NO option under Wireless and Networking for Wireless calls. The app doesn’t mention them. I don’t know if my problem is my phone, version of android, or the plan I’m on.

  3. Please have Wifi calling for your Super LTE service. I know you say the coverage is so good that you don’t get a lot of requests for it. But I’m requesting it. I always had it with my previous company, and it’s wonderful to have the option.

    1. Me. Too. I chose USM because it uses Verizon towers and Verizon is the only provider that gets good service in my neighborhood. Initially, the coverage was great but not so much anymore. Wifi calling would be great.

    1. You might need a newer GSM SIM, or it could be something else too. Please reach out to support over chat, or over the phone at 878-205-0088 and they can help sort it out for you.

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