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
Phone overview on page 13
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
Phone overview 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
Phone overview on page 13
Phone overview
April 2020 Using Avaya J159 IP Phone SIP 18
Comments on this document? infodev@avaya.com
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