No.
Name
Description
6
WLAN Module Panel
To integrate the wireless module for Wi-Fi
support.
7
PoE Slide Switch
To set the PoE value to one of the following:
• L: Class 1
• H: Class 2
8
USB Port
To connect the USB device.
Related links
Secondary display
The secondary display of the phone provides additional call appearances and feature or
application display.
It has six lines of four-page display that provides 24 additional lines for incoming calls, outgoing
calls, auto-dialing, and calling features. It displays the dedicated view for keys 25 — 48. You can
switch between the pages using the left and right keys.
Related links
on page 13
Optional components
You can use the following optional components with the phone:
• PSAC12R–050 – 5V DC Power adapter
• GSPPoE - Avaya 48V PoE power inserter
Related links
on page 13
Phone overview
April 2020
Using Avaya J159 IP Phone in an Open SIP environment
18