Initiating the Customer originated trace
........................................................................... 105
Escalation calls to supervisor
............................................................................................... 106
Escalating a call to the supervisor
................................................................................... 106
Escalating a call to the supervisor during an emergency
................................................... 107
............................................................................................... 108
........................................................................................... 112
................................................................................................ 114
Restoring customized keys to default
.............................................................................. 115
Turning call history on and off
......................................................................................... 116
Enabling and disabling Microsoft
........................................ 117
................................................................................................ 119
Redirecting calls when Do Not Disturb is active
................................................................ 120
Turning automatic gain control on or off
........................................................................... 120
Turning button clicks on and off
...................................................................................... 121
Turning error tones on and off
........................................................................................ 121
Enabling wireless headset bidirectional signaling
............................................................. 121
............................................................................................... 122
Configuring hearing aid compatibility
............................................................................... 122
................................................................................................ 123
Setting a personalized ringtone
...................................................................................... 124
.................................................................................... 125
Changing the background image for the secondary display
............................................... 125
............................................................................................. 126
Changing the screen saver for the secondary display
....................................................... 126
Setting the screen saver details
...................................................................................... 126
Contents
April 2020
Using Avaya J159 IP Phone in an Open SIP environment
10