Learn how to set up and use Wi-Fi calling, the 911 address, and the connection preference on the Samsung Galaxy S 4.
Turn on and connect
To use Wi-Fi calling, you must first register your 911 address at my.t-mobile.com. If you do not, you may see a REG09 error. To learn how to register your 911 address, see: 911 addresses: My T-Mobile.
To set the connection preference for the phone to use Wi-Fi calling or mobile networks, follow these steps:
To use Wi-Fi calling, you must first turn on Wi-Fi and connect to a network. To turn on Wi-Fi and connect, follow these steps:
To turn on Wi-Fi calling, follow these steps:
Are you sure you want to delete this document?