User's Manual

Calls
Each line can support multiple calls, typically up to four calls. Your phone can support up to 24 connected
calls, but your system administrator can adjust this number according to your needs. Only one call can
be active at any time; other calls are automatically placed on hold.
Here is an example: If you have two lines and each line supports four calls, then you could have up to eight
connected calls at one time. Only one of those calls is active and the other seven are held calls.
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 200 hours of standby time
If you use a Bluetooth wireless headset, the headset reduces the talk time and standby time for the battery.
In addition, how the administrator configures your phone can affect the battery life.
Note
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 x 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.
Cisco Wireless IP Phone 8821 and 8821EX User Guide
12
Your Phone
Out-of-Range Alerts