
15
Overview
Introduction
This chapter describes the hardware and firmware features of the Nortel IP
Phone 1140E and provides a brief overview of Session Initiation Protocol
(SIP).
SIP overview
Session Initiation Protocol (SIP) is a signaling protocol used for establishing
multimedia sessions in an Internet Protocol (IP) network.
SIP is a text-based protocol similar to HTTP and SMTP. With the introduction
of SIP to IP Phones, telephony integrates easily with other Internet services.
SIP allows the convergence of voice and multimedia.
IP Phone 1140E with SIP Firmware
The IP Phone 1140E connects to an IP network using an Ethernet
connection. All voice and signaling information is converted into IP packets
and sent across the network.
The IP Phone 1140E can be ordered with UNIStim Firmware installed or
with SIP Firmware installed. UNIStim Firmware and SIP Firmware use the
same hardware, but the model number of an IP Phone 1140E with UNIStim
Firmware is different from the model number of an IP Phone 1140E with
SIP Firmware.
If you have an IP Phone 1140E with UNIStim Fir mware, you can convert the
firmware to SIP Firmware. The most recent version of SIP Firmware can be
obtained from Nortel and installed on the IP Phone 1140E.
This guide explains how to:
•
configure the provisioning server and the DHCP server. Note: The
provisioning server is where the firmware and the configuration files for
the IP Phone 1140E reside. This is not the IP Client Manager (IPCM) of
the call server.
•
convert an IP Phone 1140E with UNIStim Firmware to an IP Phone
1140E with SIP Firmware
SIP Fir mware Release 1.1 for IP Phone 1140E Administration
NN43113-300 02.05 Standard
27 May 2008
Copyright © 2008, Nortel Networks
.
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