AT&T MERLIN LEGEND Release 4.0 Feature Reference page 289

Feature Reference
If the system is programmed for One-Touch Transfer, the operator can press an
Auto Dial or DSS button to put an active inside or outside call on hold and
initiate a transfer, whether or not DLC Operator Automatic Hold is enabled.
If the system is not programmed for One-Touch Transfer, the operator can press
an Auto Dial or DSS button to put an active outside call on hold and initiate a
transfer, whether or not DLC operator Automatic Hold is enabled. (This
capability is called One-Touch Hold .)
Every time the operator hold timer expires, the DLC operator hears an
abbreviated ring as a reminder that a call is on hold.
Queued Call Consoles
Pressing the Hold button to put a caller on hold makes the QCC operator
available for incoming calls from the QCC queue.
The first two times the operator hold timer expires, the QCC operator hears an
abbreviated ring as a reminder that a call is on hold.
If the operator does not pick up a call by the time the timer expires twice, the
Hold Return option determines whether the call remains on hold or returns to the
QCC queue. If this option is programmed for calls to remain on hold, the
operator hears the abbreviated ring every time the operator hold timer expires
and no call is ringing on the console. If the option is programmed for calls to
return to the queue, each call on hold at the QCC is timed individually. (The
operator hold timer is applied separately to each Call button.)
When a held call returns to the queue after the second hold reminder, the call is
identified by call type and by the name and extension number of the operator
who put it on hold. The second line of the QCC display also shows the caller
information.
Other Multiline Telephones
Multiline telephones have built-in Hold buttons.
When a call is first put on hold, the display on an MLX telephone briefly shows
Single-Line Telephones
For Release 4.0 or later releases, single-line telephone users should use Park
instead of Hold to put a call on hold.
If a single-line telephone user with a call on hold hangs up, the call rings back
at the extension.
. This message reappears briefly each time the hold timer expires.
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Hold