Product Overview
Call coverage is critical for administrative assistants and others who must monitor and manage the status of calls.
It requires the ability to instantly determine the status of numerous lines beyond those of the Cisco IP Phone 8851
and 8861 models.
Cisco IP Phone 8800 Key Expansion Module extends the capabilities of Cisco IP Phone 8851 and 8861 models
with additional buttons and a color LCD display. This key expansion module adds 18 physical keys with access to
18 additional keys, using the page keys, for a total of 36 additional keys. You can connect up to three Cisco IP
Phone 8800 Key Expansion Modules to the IP Phone 8861, and up to two Cisco IP Phone 8800 Key Expansion
Modules to the IP Phone 8851.
The Cisco IP Phone 8800 Key Expansion Module comes with a foot stand and all necessary hardware to connect it
directly to the base device in the traditional side-by-side fashion.
Features and Benefits
The large LCD display of the Cisco IP Phone 8800 Key Expansion Module allows for quick and easy identification
of associated buttons. Using the settings menu of the IP Phone 8851 and 8861 models, you can adjust the
brightness of the individual key-expansion-module LCD according to your preference.

The primary function of the Cisco IP Phone 8800 Key Expansion Module is to provide additional keys for directory
numbers, speed dial, or programmable feature keys to the IP Phone 8851 and 8861. These keys are illuminated,
and when configured as directory numbers or shared-line keys they allow for easy identification of line status. The
Cisco IP Phone 8800 Key Expansion Module is an ideal call-coverage tool. It provides features that are similar, but
not intended to be directly comparable to those of traditional direct station selection/busy lamp field (DSS/BLF)
modules, therefore it is neither an operator nor an attendant console.
The two illuminated page buttons below the Cisco IP Phone 8800 Key Expansion Module display allow you to shift
between the first and second page of 18 buttons, providing access to all 36 keys.
Table 1 describes the features and benefits in more detail.
Table 1. Features and Benefits
Feature Benefits
Illuminated Buttons
Off (dark) Line available
Green, steady Line in use
Red, steady Line in use by shared line
Amber, flashing Line ringing
Illuminated Page Buttons
Off (dark) Page not in focus
Green, steady Page in focus
Amber, flashing Page not in focus, with one or more alerting or on-hold calls present on page
Hardware and Power-Saving Features
Graphical display The 4.3-inch graphical (TFT) color display provides 16-bit color depth and 480 x 272 effective pixel resolution,
with backlight. The display also supports localization requiring double-byte Unicode encoding for fonts.
Articulation You can articulate the display to match the same angle as the Cisco IP Phone 8851 or 8861 that it is connected
to.
Directory-number and feature
buttons
The module has 18 physical buttons (36 using page keys).
Page buttons Use the two page buttons to access each page of 18 buttons and provide phone status.
Sleep or inactivity mode When Cisco IP Phone 8851 and 8861 models are in power-saving sleep or inactivity mode, the Cisco IP Phone
8800 Key Expansion Module is also in sleep or inactivity mode. Pressing any button on the key expansion
module causes the display to awaken. The system administrator configures the inactivity period.