Nortel Networks 1100 Series - Manual (Page 11)

Introduction
11
Introduction
This document describes the Expansion Module for IP Phone 1100
Series (SIP Firmware) and how to use it with the IP Phone.
Description
The Expansion Module for IP Phone 1100 Series (SIP Firmware) is
supported on the following IP Phones:
• IP Phone 1120E
• IP Phone 1140E
The Expansion Module is a hardware accessory that connects to the
IP Phone and provides additional line appearances and feature keys.
Up to three modules are supported. The IP Phone 1120E and IP Phone
1140E can have up to 54 additional line/feature keys with three
Expansion Modules.
Attention: The power adapter of the phone can only supply enough
current for 3 expansion modules. For the purposes of this release,
only 3 expansion modules are supported by the phone.
The following figure shows the IP Phone 1100 Series Expansion Module.