Line Keys; Answering Priority; Line Queuing / Line Callback; Line Queuing - NEC DSX PRODUCT DESCRIPTION Manual

Line Keys

Press a line key for one-touch access to an outside line.
A line key provides an extension user with one-button access to outside lines. The extension user just presses
a line key to place or answer a call on the line. There is no need to dial codes to access or intercept outside
calls. In addition, a line key provides a Busy Lamp Field (BLF) for the line to which it is assigned (see the
table below).

Answering Priority

When multiple calls ring an extension simultaneously, the system services the ringing calls in the follow-
ing order:
1. Ringing Intercom call
2. Line or loop key (from lowest to highest)
- This option does not restrict loop keys.

Line Queuing / Line Callback

- When all lines are busy, Line Queuing lets a user wait in line for a line to become free.
- Line Callback will automatically call the user back when a line is available.

Line Queuing

Line Queueing permits an extension user to queue (wait in line) on hook for a busy line or Line Group to
become free. The system connects the queued extension as soon as the line is available. The user does not
have to manually retry the line later.

Line Callback

After queuing for a line, the extension user just hangs up to convert the Line Queue into a Line Callback.
When the line becomes free, the system automatically recalls the extension. As soon as the extension user
answers the callback ring, the system connects the extension to the line.
An extension user can leave a Line Callback for many lines. The system processes the callbacks as the lines
become free. In addition, many extensions can leave a Line Callback for the same line. The system processes
the Callbacks on a first-in/first-out (FIFO) basis.
DSX Product Description
When the key is:
Off
On (red)
On (green)
Wink On (red)
Wink On (green)
Double Wink On (green)
Slow Flash (red)
Slow Flash (green)
Line Key BLF Indications
Idle or not installed
In use or on Exclusive Hold at a co-worker's extension
In use at your extension
On System Hold at a co-worker's extension
On System Hold at your extension
On Exclusive Hold or recalling your extension
Ringing into the system
Ringing or recalling directly to your extension
The line is:
Features ◆ 53