Huawei myTouch User Manual page 32

When the Wi-Fi Calling feature is on,
your phone displays the
Wi-Fi Calling icon on the
Status bar.
To stay on a Wi-Fi call, you must
remain within range of the Wi-Fi
network. Your call will drop as you
leave the Wi-Fi range. When your
Wi-Fi signal weakens, your phone
will beep and display a warning
message alerting you that your call
will drop if the signal gets weaker.
Wi-Fi Calling offers three connection options:
Wi-Fi Preferred: All calls are
made over an available Wi-Fi
network. If there are no available
Wi-Fi networks calls are made
over the cellular network.
Wi-Fi Only: All calls are made over
an available Wi-Fi network. If there
are no available Wi-Fi networks,
your calls will not connect.
Cellular Preferred: All calls are
made over the cellular network
unless the cellular network is not
available, then calls are made
over an available Wi-Fi network.
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