Cisco Unified Wireless IP Phone 7921G Battery, Extended CP-BATT-7921G-EXT= User Manual

You can use the desktop charger, as shown in 

, to charge both the phone battery installed in the 

phone and a spare battery at the same time. In addition, the desktop charger is a speakerphone when the 
phone is docked in the charger.

To use the desktop charger, see 

 and follow these steps:

Plug the power supply with AC plug adapter into a wall outlet.

Insert the connector plug into the back of the desktop charger.
The power LED on the desktop charger is green.

Place the Cisco Unified Wireless IP Phone 7921G in the upper compartment of the charger and look for 
the “AC connected!” message on the phone screen. 
The phone starts charging. 

Press down on the top of the phone and look for the “Docking connected!” message on the phone screen 
and the docked icon in the phone status line. The phone is connected to the desktop charger speaker and 
microphone for speakerphone operation. 

Optional—You can also insert a spare battery into the lower slot. The battery LED is red while charging 
the battery and turns green when the battery is fully charged.

You can insert and charge both the phone and a spare battery at the same time, or you can insert 
and charge them separately.

While charging the Cisco Unified Wireless IP Phone 7921G, you can use the Cisco Unified Wireless IP 
Phone 7921G web pages to import or export settings. You must connect the desktop charger to your 
computer with the standard USB A-type to B-type cable. For more information, see 

To remove the phone from the desktop charger, tilt the phone forward about 30 degrees, then remove it 
from the compartment. Proper removal insures that the connectors will work reliably.

If you have a desktop charger, you do not need a phone power supply to charge your phone.