Question about NEC Electra Elite DTU 16D-2 Corded Phone
The display contrast on one of our phones changed to where it is all dark blue so now unable to be read. Anyone know how to adjust the contrast back to a normal setting? I can't find it in any manual we have for the system. Thanks.
Press speaker button and dial 602+ up and down key to adjust the display. dial 601 to increase ring volume. DJ
Posted on Sep 01, 2007
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Posted on Jan 02, 2017
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