An important tip for these LCDs. There are two versions that look almost identical and they are not cross compatible.
At some point Nortel changed the driver IC for the LCD and had to change the processor on the main circuit board to talk to this new driver IC. The newer version is called "E1"...
I've been trying to set up a 403 cabinet for testing IP phones. I purchased two used units. The first had dead LAN with a burnt chip on the main board. The second had no software installed. I could get into both with DTE port. I even went as far as swapping software ICs from the first unit to...
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