Cisco 8961 Administration Manual page 344

Install Bracket for Phone with KEM
d) Use the included screws and a #2 Phillips-head screwdriver to attach the bracket to the wall.
Figure 11: Mount the Wall Bracket
Step 2 Attach the phone bracket to the IP phone and key expansion assembly.
a) Detach the handset cord (and headset cord, if there is a headset), power cord, and any other attached cords
from the base of the phone.
b) Remove the label covers that are conceal the screw holes.
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0 (SIP)
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REVIEW DRAFT - CISCO CONFIDENTIAL
Cisco Unified IP Phone Wall Mount