WLAN/Wi-Fi
Important: Always enable one of the available encryption methods to
increase the security of your wireless LAN connection. Using encryption
reduces the risk of unauthorized access to your data.
Some places, like France, have restrictions on the use of wireless LAN. Check with
your local authorities for more information.
Your device supports voice calls over the internet (internet calls). Your device
attempts emergency calls primarily over cellular networks. If an emergency call
using cellular networks is not successful, your device attempts an emergency call
through your net call provider. Due to the established nature of cellular
telephony, you should use cellular networks for emergency calls, if possible. If
you have cellular network coverage available, make sure that your cellular phone
is switched on and ready to make calls before you attempt an emergency call. The
capability for an emergency call using internet telephony depends on the
availability of a WLAN network and your net call provider's implementation of
emergency call capabilities. Contact your net call provider to check the internet
telephony emergency call capability.
This device can detect and connect to a wireless local area network
(WLAN) through call over local access. This unlicensed mobile access
(UMA) technology allows a seamless handoff of mobile voice and data
from a wide area cellular network to WLAN or wireless fidelity (Wi-Fi),
so it is possible to connect at a high speed to the internet from virtually
anywhere.
Before you can start using UMA, you must first obtain a UMA account
with your service provider. Since this device was specially designed to
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detect and connect to WLAN/Wi-Fi, the proper settings may already be
configured in your phone. For more information, contact your service
provider.
If you move the device to another location within the wireless LAN and
out of range of a WLAN/Wi-Fi access point, the roaming function can
automatically connect your device to another access point that belongs
to the same network. During a call you will hear a beeping sound when
you go in and out of range of the WLAN/Wifi access point and connect
to the cellular network. As long as you remain within range of access
points that belong to the same network, your device can stay connected
to the network.
A WLAN/Wi-Fi connection is established when you create a data
connection using a WLAN/Wi-Fi access point. The active WLAN/Wi-Fi
connection is ended when you end the data connection.
Features using WLAN/Wi-Fi or allowing such features to run in the
background while using other features, increase the demand on battery
power and reduce the battery life.