Cisco 7920 Series User Manual page 19

To remove the phone cover, follow the steps in the graphic below:
1
2
Push locking catch to the left to release the cover.
1
2 Lift and remove the cover of the battery compartment.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G User Guide for Cisco Unified Communications Manager
FCS REVIEW DRAFT - CISCO CONFIDENTIAL
Connecting Your Phone