The Cisco IP Phone 8851/8861 Key Expansion Module and the Cisco IP Phone 8865 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.
You can use more than one expansion module per phone. The Cisco IP Phone 8851 and 8851NR support up
to 2 modules. The Cisco IP Phone 8861, 8865, and 8865NR support up to 3 modules. But each module must
be the same type. This means that you cannot mix audio expansion modules with video expansion modules.
You also cannot use a video expansion module on an audio phone or an audio expansion module on a video
phone.
Most calling features are supported on your expansion module, and they are configured by your administrator
from the Cisco Unified Communications Manager. If a feature is available on the Self Care Portal, then you
can add the feature to your expansion module.
When adding features to your expansion module, remember that each line button supports only one feature.
You cannot add more features than the number of programmable line keys on your expansion module.
Also note the line mode when working with a key expansion module. In Session line mode, the first line key
on the expansion module is line 6 of the phone template. In Enhanced line mode, it is line 11 of the phone
template. Only the first 25 characters are displayed on a line.
Table 20: Available Line Keys in Each Session Mode
Dual LCD screen expansion moduleSingle LCD screen expansion moduleCisco IP Phone Model
Session Line Mode: 61Session Line Mode: 77Cisco IP Phone 8851 and 8851NR
Enhanced Line Mode: 66Enhanced Line Mode: Not supported
Session Line Mode: 89
Session Line Mode: 113Cisco IP Phone 8861
Cisco IP Phone 8865 and 8865NR
Enhanced Line Mode: 94Enhanced Line Mode: Not supported
Cisco IP Phone 7800 and 8800 Series Accessories Guide for Cisco Unified Communications Manager
50
Key Expansion Modules
Cisco IP Phone Key Expansion Module Setup Overview
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