IP500/IP500 V2 Installation Page 305
15-601042 Issue 25i (03 January 2013)IP Office 8.0
System Components: Phones
9.11.37 5420
This phone is similar in physical appearance and functions to the 2420. However the 5420 is only supported on IP Office.
Handsfree Speaker/Microphone
201B Recorder Interface Module
1151D2 Power Supply with battery backup.
*When used with an EU24 unit, a 1151 type power supply unit must be used to power the phone.