Samsung Galaxy S4 User Manual page 94

Note: With certain rate plans, minutes used while connected
to the Wi-Fi network count against available rate plan
minutes.
Important! If you are not using a new ISIM card, you will
receive an Error: ERxx Invalid SIM message. You
must be using a new ISIM card to use this feature.
Activating Wi-Fi Calling
1. Ensure that the Wi-Fi connected icon
the Status Bar.
• If prompted with an on-screen "Did you know your phone can
make calls over Wi-Fi" popup, tap Learn and follow the
remaining on-screen instructions. Tap Next
2. From the Home screen, press
Settings
More settings.
3. Locate the Wi-Fi Calling field and in a single motion
touch and slide
OFF
OFF
ON .
ON
88
displays on
Done.
and then tap
(Connections tab)
DRAFT
to the right to turn it on
Internal Use Only
4. If (Missing 911 Address) displays in the Status
Bar, follow these steps to provide 911 an address for
emergency situations:
• Log into my.t-mobile.com.
• Click on Profile and edit the Edit customer information.
• Enter your emergency location information and complete the
online registration.
5. From the Home screen, press
Settings Connections tab
Wi-Fi Calling.
6. Tap Connection Preferences and select a preference for
use by the Wi-Fi Calling feature:
• Wi-Fi Preferred: Wi-Fi network is preferred over cellular
network when making calls. Calling requires you to stay in the
Wi-Fi range.
• Cellular Network Preferred: The cellular network is preferred
over a Wi-Fi network when making calls.
• Never use Cellular Network: Use only Wi-Fi for calls.
Do not use Cellular Network, even if available.
and then tap
More settings