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Overview
The Nortel IP Phone Expansion Module User Guide (CICM),
(NN10300-011) document describes the following:
•
•
Key Expansion Module (KEM)
IP Phone Key Expansion Module description
Nortel IP Phone Key Expansion Module (KEM) is a hardware component
that connects to an IP Phone to expand the number of fixed line and
feature keys available to the phone. The number of keys that are available
is determined by the Communication Server (CS2000/CS2100) to which
the IP Phone or KEM is connected, and not the devices. When KEM
is used with the 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. See
Figure 1 "IP Phone Key Expansion Module" (page
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.
Copyright © 2008 Nortel Networks
.
Nortel IP Phone Key Expansion Module (KEM) and how to use it with
Nortel IP Phone 2000 Series terminals in a Communication Server
2000/2100 network. For details see
(page
7).
Nortel IP Phone Graphical Expansion Module (GEM) and how to use
it with Nortel IP Phone 1100 Series terminals on a CICM platform,
having access to an additional 22 keys on a Communication Server
2000/2100 network. For details see
(GEM)" (page
10).
Carrier VoIP
Nortel IP Phone Expansion Module User Guide (CICM)
NN10300-011 09.01 Standard
"Key Expansion Module (KEM)"
"Graphical Expansion Module
4 July 2008
8).
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