AT&T MERLIN LEGEND Release 4.0 Feature Reference page 483

Feature Reference
Automatic Route
Selection
Automatic Route
Selection
continued
Barge-In
Basic Rate Interface
Callback
Call Waiting
Conference
Coverage
Directory
In Release 2.0 and later, Recall can be used on an ARS call. Recall
cannot be used during dialing. When dialing is completed, pressing the
Recall button sends a timed flash to the host, the accessed trunk is
kept, the user hears outside dial tone, and calling restrictions are
reapplied.
In Release 1.0 or 1.1, Recall cannot be used on an ARS call, because
the call is made on an SA button.
In Release 2.0 and later, Recall can be used by the user who has joined
a call with Barge-In, as well as by the user who was interrupted.
In Release 1.0 or 1.1, Recall cannot be used with Barge-In, because
Barge-In is used on an SA or ICOM button.
Recall is not recognized by the central office (CO) on BRI lines.
Therefore, pressing the recall button on a telephone is ignored by the
CO.
If Recall is used while the user is off-hook with a queued callback
request, the call is disconnected and the user hears dial tone.
If Recall is used while the user is hearing special ringback, the call is
disconnected and the user hears inside dial tone.
The Conf button is used to enter the Flash special character, which
simulates pressing the Recall button in telephone numbers
programmed for Directories, Auto Dial buttons, or Speed Dial codes.
In Hybrid/PBX and Key modes, a single-line telephone user with a
Recall or Flash button can add a participant to a conference call and
connect all participants by using the Recall or Flash button. In addition,
the Recall or Flash button can be used to drop the most recently
added participant or to drop a busy number.
In Behind Switch mode, the fixed Conf button on an MLX or analog
multiline telephone must be programmed through system programming
to send a timed flash plus the code expected by the host switch to
activate Conference on the host. If use of the communications system's
Conference feature is also desired, it must be programmed on an
available line button on each multiline telephone through extension
programming or centralized telephone programming. Recall has no
effect on a completed conference call.
Recall has no effect on a call answered on a Primary Cover, Secondary
Cover, or Group Cover button.
In Release 2.0 and later, Recall can be used on a Group Coverage call
answered by a member of a calling group. In Release 1.0 or 1.1, Recall
cannot be used on a call of this type, because it is answered on an SA
or ICOM button.
The Conf button is used to enter the Flash special character, which
simulates pressing the Recall button in a Directory listing telephone
number.
483
Recall/Timed Flash