To use T-Mobile Wi-Fi Calling, you need: E911 address:Before you can use Wi-Fi Calling, you need to set up an e911 address on your account in case your location Active account:The service connects through T-Mobile service and uses your phone number, so your account must be active. Phone that
Sep 18, 2016 Wi-Fi Calling over the Internet - Support Overview | Verizon Learn all about Wi-Fi Calling, a high definition (HD) voice solution for dropped calls and a weak cellular signal. Make and receive calls using the Internet over Wi-Fi. Due to inactivity, your session will end in approximately 2 minutes. Extend your session by clicking OK below. How to Set Up & Use Free Gogo Inflight Wifi | T-Mobile
It uses your internet connection, but phones connect automatically and no need wifi calling to use it. It also has a reputation as being more reliable than wifi calling. I see them on ebay here: edit: removed as I linked to the wrong item. I don't know if you need TMobile service to activate it and get it working or not.
Jan 22, 2018 Wifi calling on Nexus 5 using phone app option? | T-Mobile
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Setting Up Wi-Fi Calling on Android Phones - YouTube May 07, 2013 What is Wi-Fi Calling, and How Does it Work? | Digital Trends May 25, 2020 HTC One M9 (T-Mobile) - Wi-Fi Calling - HTC Support | HTC When you're in a place with limited cellular coverage but with Wi-Fi connection, use Wi-Fi Calling to make and receive calls over Wi-Fi using your available rate plan minutes. To use Wi-Fi Calling, please use the SIM card shipped with your device.A different SIM card may not work with the Wi-Fi Calling feature. You must also have a 911 emergency address registered with your account. How to Turn On WiFi Calling for iPhone and Android | T-Mobile