Cisco 8811 User Manual page 118

Cisco IP Phone 8800 Key Expansion Module
Cisco IP Phone 8851/8861 Key Expansion Module require firmware release 12.0(1) or later, and Cisco Unified
Communications Manager 10.5(2) or later to function. Enhanced line mode (ELM) is supported only on the
Cisco IP Phone 8851/8861 Key Expansion Module and the Cisco IP Phone 8865 Key Expansion Module.
ELM is not supported on the single LCD expansion modules.
If you are using more than one expansion module, all the modules must be the same type. You cannot combine
different expansion modules on your phone.
Table 13: Key Expansion Module Support
Cisco IP Phone Model
Cisco IP Phone 8851 and 8851NR
Cisco IP Phone 8861
Cisco IP Phone 8865 and 8865NR
When multiple key expansion modules are attached to the phone, they are numbered according to the order
in which they are connected to the phone. For example:
• Key expansion module 1 is the closest unit to the phone.
• Key expansion module 2 is the unit in the middle.
• Key expansion module 3 is the farthest unit from the phone.
Figure 9: Cisco IP Phone 8861 with Three Cisco IP Phone 8800 Key Expansion Modules
Caution
The slots in the side of the phone are designed only for use with the spine connectors on the key expansion
module. Insertion of other objects permanently damages the phone.
When you use key expansion modules, check with your administrator about power requirements.
Cisco IP Phone 8800 Series User Guide
106
Supported Single LCD
Key Expansion Modules
2; providing 72 lines or buttons
3; providing 108 lines or buttons
3; providing 108 lines or buttons
Accessories
Supported Dual LCD Key
Expansion Modules
2; providing 56 lines or buttons
3; providing 84 lines or buttons
3; providing 84 lines or buttons