The display screen on my Avaya 8434DX isn't working. Any ideas?

hi robert.
see if this helps you,if not go to the link and the bottom.
How to change the display name in Avaya phone? Press the Select soft key or the OK button or the right arrow key. Use the up and down arrow keys to scroll the display to the option Display Name. Press the Change soft key to change the setting or use the left or right arrow keys. Display your extension number and the date and time on the phone when it is idle.

Display Name - Avaya

marketingtools.avaya.com/knowledgebase/user/ipoffice/.../1408/display_name.htm Search for: How to change the display name in Avaya phone?
How do you change the display names on the Avaya 5420 Google Search

Administering a 1400 Series Digital Deskphone
Perform the following steps for each 1400 Series Digital Deskphone:
1. Log into the Avaya Aura Communication Manager administration interface.
2. Perform one of the following steps:
? If you are adding a new extension and want to assign a specific extension number, use
the add station nnnn command, where nnnn is the new extension you want to assign.
? If you are adding a new extension and want to assign the next available extension
number, use the add station next command.
? If you are installing the 1400 Series Digital Deskphone at an existing extension, use the
change station nnnn command, where nnnn is the existing extension you want to
modify.
The Station screen appears.
3. Perform one of the following steps:
? If you are administering a 1408 telephone, type 2410 in the Type field.
? If you are administering a 1416 telephone, type 2420 in the Type field.
4. In the Port field, type the port address.
5. In the Name field, type the name to associate with this telephone. Administering 1400 Series Digital Deskphones
20 Avaya 1400 Series Digital Deskphones Installation and Maintenance Guide
6. Configure the remaining fields on the Station screen pages. Keep in mind the following
information:
? If you are administering a 1408 telephone, the first eight call appearance/feature buttons
displayed on the Station screen are administered on the 1408 telephone. (Since the 1408
telephone is aliased as a 2410 telephone, the Station screen displays 10 call
appearance/feature buttons.) The remaining buttons displayed on the Station screen are
not administered.
? If you are administering a 1416 telephone, the first 16 call appearance/feature buttons
displayed on the Station screen are administered on the 1416 telephone. (Since the 1416
telephone is aliased as a 2420 telephone, the Station screen displays 20 call
appearance/feature buttons.) The remaining buttons displayed on the Station screen are
not administered.
? If you are administering a 1416 telephone with a DBM32 Button module, the first 16 call
appearance/feature buttons displayed on the Station screen are administered on the
1416 telephone. The remaining eight call appearance/feature buttons displayed on the
Station screen are administered on the first eight buttons of the DBM32 Button module.
The 24 buttons of the EU24 expansion module displayed on the Station screen are
administered for the remaining 24 buttons of the DBM32 Button module.
For more information about administration and features, see:
- Administering Avaya Aura™ Communication Manager, Document Number 03-300509
- Avaya Aura™ Communication Manager Feature Description and Implementation,
Document Number 555-245-205
- Avaya Aura™ Communication Manager Screen Reference, Document Number
03-602878
7. When finished administering this extension, save your changes.

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You will need the Definity control unit, with the appropriate licensing

Its on a toggle switch. So hit menu, select time and day, do not hit exit, wait.
If it goes away, you just shut it off do this again, and it should stay on.

Various potential network problems might be causing the problem. Access the Network Audio Quality screen. In the event you experience poor audio quality during a call, the problem is likely with your network. This screen provides information that can help identify causes of poor audio quality. Note: Note: The Network Audio Quality button displays only when you are on a call (off-hook). 1. Select Network Audio Quality from the Options Main screen (accessed by pressing the phone's Option button). If administered, the Audio Status screen displays. 2. To return to the first Options Main screen, press the Return softkey.

PLE SEND ME THAT UMBER DETAIL

Hi Check the power brick in between the phone and the wall socket for your phone connection. The brick provides power to the display. make sure there is power green LED should be lit and the cables should be plugged in properly

Your system Admin will need to do this on their phone or via command line interface.

You should be able to hit the Menu button, then the arrow directly below the TmDay display and then hit exit once the date and time are displayed. The date should disappear but the time should stay.

The time on the phone system has been reset, but you must refresh your system.

1. Press menu button

2. Press the time/day button, which displays current time & day--wait for it to time out (in other words, the screen clears and returns to menu).

3. Press exit.

Repeat steps 2 & 3 to display your clock and check time.

THIS REFRESHES YOUR CLOCK TO THE ACCURATE, CELL-TOWER TIME.