2420 and 5420 User Guide Page 1
IP Office 3.2 [15-601077] Issue [7] (5 June 2006)
The Telephone

About this Guide

This guide describes how to use all the features on your Avaya IP Office 2420/5420 phone.
For basic phone settings and functionality, refer to the relevant Quick Reference Guide for your IP Office
phone.
Further information about IP Office is available from www.avaya.com/support and also from
www.avaya.com/ipoffice/knowledgebase.

Overview

This guide covers the use of the 2420 and 5420 phones on IP Office. Both phones are similar, however
the 5420 is only supported on the IP Office whereas the 2420 is supported on a range of Avaya phone
systems.