Cisco 8800 Series User Manual page 203

Accessories
Note
Key Expansion Module Buttons and Hardware
Figure 13: Cisco IP Phone Key Expansion Module (Single LCD) Buttons and Hardware
Figure 14: Cisco IP Phone Key Expansion Module (Dual LCD) Buttons and Hardware
• The fast-charging feature on the back USB does not work when more than one key expansion module
is attached to a Cisco IP Phone 8861 and 8865 using 802.3at PoE.
• The fast-charging feature on the back USB doesn't work when more than one key expansion module is
attached to a Cisco IP Phone 8861 and 8865, unless Cisco Universal PoE (UPoE) is used.
• Cisco IP Phone 8851 with 2 key expansion modules works on 802.3at PoE only with v08 or later hardware.
You can find the phone version information on the lower back of the phone as part of the TAN and PID
label. Version information is also located on the individual phone packaging.
Key Expansion Module Buttons and Hardware
Cisco IP Phone 8800 Series Multiplatform Phones User Guide
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