Out-of-Range Alerts
Your system administrator can configure your phone to send you an audible alert (beep) when you are out of
range of the wireless network. When you hear the alert, the (no signal) icon displays on the phone screen.
When you are out of range of the wireless network, you cannot use the phone for features requiring a wireless
network connection, such as making and receiving calls.
If your system administrator enabled the out-of-range alert, depending on the configuration, you might hear
a beep only once, or every 10, 30, or 60 seconds until you are back within range of the wireless network.
To reconnect to the wireless network after you hear the alert, move to another location until you see the signal
icon on the phone screen again.
Phone Batteries
Your phone contains a lithium ion battery. The fully charged battery provides the following hours of service:
•
Up to 13 hours of talk time
•
Up to 240 hours of standby time
Battery life depends on a number of factors including:
• On time—The battery life is reduced when the phone is turned on. Calls, messages, application use,
Bluetooth use, and actions like menu navigation use power.
• Scan mode—Your phone can be set up for scan the access points in three different ways (Continuous,
Auto, Single AP). If your phone uses Continuous or Auto scan modes, the phone requires more power,
which reduces battery talk time.
If you require longer talk times, you will find it useful to have a spare, charged battery.
Bluetooth and Your Phone
You can use a Bluetooth headset with your phone.
Bluetooth connections work best when you're within 3 to 6 feet (1 to 2 meters) from your phone, but you
might be able to be as far away as 66 feet (20 meters). The Bluetooth connection can degrade if you have a
barrier (wall, door, window), large metal object, or other electronic devices between your phone and the
connected device.
To connect a headset to your phone with Bluetooth, you start by pairing the headset with your phone. You
can pair up to 5 Bluetooth headsets with the phone. After the headset is paired, the phone connects to the
headset when the headset is turned on. The last Bluetooth headset connected with the phone is the headset
that the phone uses.
The Cisco Wireless IP Phone 8821-EX has not been tested or certified with any accessories for use in
Potentially Explosive Atmosphere.
Note
Cisco Wireless IP Phone 8821 and 8821-EX User Guide
13
Your Phone
Out-of-Range Alerts
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