Cisco 6821

Figure 9: Mounting Holes
Mounting Hole on the Phone1
Wall Mount Pin on the Wall Mount Plate2
Step 8 Firmly slide the phone down into place as shown in the following image:
Figure 10: Sliding the IP Phone
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Phone Accessories
Install the Cisco IP Phone 6821 Multiplatform Phones on a Wall