Display
When your phone (or station) is not in use, the display will show the current date and time, as well as activated features such as DND (do not disturb; see “MUTE/DND”), monitor mode, etc.) and — on an ESI desktop phone (other than the legacy 12-Key Feature Phone) — the system’s current line usage. The line usage display you see will depend on (a.) how many phone lines you have and (b.) which display, two-line or three line, your ESI phone has.
Note:
An ESI Cordless Handset’s display is similar to that of the two-line display shown below; one difference is that a Cordless Handset doesn’t show line usage.
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If your system has a smaller number of phone lines (18 or fewer if you’re using an ESI phone with a three-line display; 16 or fewer if you’re using an ESI phone with a two-line display), each block on the display’s bottom line will represent an individual phone line (as in the examples, right). Incoming calls usually are assigned beginning with Line 1 at the far-left line indicator. Outgoing calls are assigned from the highest-numbered line beginning at the far right.


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If your system has a greater number of phone lines (19 or more if you’re using an ESI phone with a three-line display; 17 or more if you’re using an ESI phone with a two-line display), the display’s bottom line will provide an approximate representation of the phone lines in use (shown at right).
A high percentage of
phone lines in use
A high percentage of
phone lines in use
Fewer phone lines in use
Fewer phone lines in use
As you use your ESI phone, its display changes frequently to give you detailed information during call processing and voice mail operations.
Your ESI phone may come with a backlit display, for higher readability under a wider variety of lighting conditions. Although its contrast cannot be adjusted, its brightness can be adjusted while the phone is idle by pressing the scroll keys and selecting ALWAYS ON HIGH, MEDIUM, LOW, WITH ACTIVITY, or OFF.
