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Overview
This document describes the IP Phone Key Expansion Module (KEM)
and how to use it with
the 2004 IP Phone.
IP Phone Key Expansion Module description
KEM is a hardware component that connects to an IP Phone to expand number of fixed line and feature
the number of keys available to the phone. When KEM is used with the KEMisusedwiththe
Centrex IP Client Manager (CICM), only 22 keys are available, despite there
being 24 physical keys on the KEM.
Keys on the KEM are displayed in two columns of 12 keys, with one column
on each side of a central liquid crystal display (LCD) screen. When deployed
with CICM, the top two keys of each column are not used.
When a KEM is installed on an IP Phone, the IP Phone controls the keys of
the KEM just as it does its native keys.
IP Phone Key Expansion Module
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