5420/2420 Phone User Guide Page 4
IP Office Issue 6d (15th September 2005)
The Telephone
Overview
This guide covers the use of the Avaya 5420 and 2420 phones on Avaya 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.