Cisco Cisco Unified Wireless IP Phone 7921G - Manual (Page 18)

10 OL-16131-01
To charge the battery in the phone using the AC power supply, use this diagram:
1 AC plug adapter—Insert the AC plug adapter into the slot on the power supply.
2 AC power supply—Insert into an AC outlet.
3 Phone connector on AC power supply cable—Insert into the connector slot at bottom of phone.
4 Indicator light—Indicates the charging status:
• Red—Battery charging in process
• Green—Battery charging is completed