NEC DS1000 - Manual (Page 192)

Line Queuing permits you to
queue (wait in line) on hook for a
busy line or line group to become
free. The system will connect you
as soon as the line is available.
You do not have to manually retry
the line later.
After queuing for a line, you just
hang up to convert your Line
Queue into a Line Callback. When
the line becomes free, the system automatically recalls your phone.
As soon as you lift the handset, you connect to the outside line.
You can leave a Line Callback request for many outside lines.
The system processes your requests as the lines become free. In
addition, you and your co-workers can leave a Callback request
for the same line. The system processes these requests on a
first-in/first-out (FIFO) basis.
If you leave a Line Callback request and fail to answer when
Callback rings your phone, the system cancels the Callback.
Line Queuing Priority
You may have Line Queuing Priority enabled for your telephone.
If you do, when you queue for a busy line Line Queuing will con-
nect you before your co-workers that don’t have priority. Your
Communications Manager can can tell you if you have Line
Queuing Priority.
184
Trunk (Line) Queuing and Callback
When all outside lines are
busy, Line Queuing lets
you wait in line for a line
to become free.
—
Line Callback will
automatically call you back
when a line is available.
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