Headset Tips; Cisco Wireless Ip Phone 8821 And 8821-Ex Desktop Charger - Cisco 8821 User Manual

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Headset Tips

If your headset has a control button, you can use the headset to listen (headphone mode) and the phone
microphone to pick up your voice. Just press the control button when you plug the phone headset in. If you
use this mode, the phone microphone automatically filters the background noise.
Related Topics
Adjust the Background Noise Filter, on page 67

Cisco Wireless IP Phone 8821 and 8821-EX Desktop Charger

You can use the Cisco Wireless IP Phone 8821 and 8821-EX Desktop Charger to charge your phone and
spare phone battery. The charger works on AC power or from a charged spare phone battery. It can be secured
with a standard laptop cable lock.
Figure 3: Cisco Wireless IP Phone 8821 and Cisco Wireless IP Phone 8821 and 8821-EX Desktop Charger
If your phone has a protective case, you don't need to remove the case before you charge the phone in the
desktop charger. You adapt the charger to fit the phone.
You can use a USB to Ethernet adapter (dongle) to connect the desktop charger to the Ethernet for only
automatic Wi-Fi profile provisioning and certificate enrollment purposes. You cannot use the dongle to make
voice calls over the Ethernet. For more information on the USB port, see the Cisco Wireless IP Phone 8821
and 8821-EX Administration Guide.
Do not use chargers or handsfree mode in a Potentially Explosive Atmosphere.
Caution
Do not charge the phone if it is wet.
Cisco Wireless IP Phone 8821 and 8821-EX User Guide
Headset Tips
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