Cisco Ip Phone 8800 Series Administration Guide For Cisco Unified Communications Manager - Cisco 8800 Series Administration Manual

Step 8
Use a screwdriver to fasten the screws into the phone.
This step ensures that the phone and key expansion module remain connected at all times. This diagram shows
the location of the screw holes on the phone and one key expansion module.
Make sure that the screws are fully inserted into the phone and
Note
tightened.

Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager

Connect a Single Key Expansion Module to a Cisco IP Phone
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