AT&T MERLIN LEGEND Release 4.0 Feature Reference page 571

Feature Reference
Caller ID
Call Waiting
Camp-On
Conference
Coverage
Digital Data Calls
If a call comes in over a line connected to an 800 GS/LS-ID module and
the customer subscribes to Caller ID service (loop-start lines/trunks
only), when the call is transferred, the caller's telephone number is
shown on Line 1 of the first screen. The extension that initiated the
transfer is shown on Line 1 of the second screen. (The call must be from
an area where call identification is supported.)
Caller ID information is displayed when a call returns from transfer
because the extension that the call was transferred to is busy or is not
answering.
If a transfer is completed to a busy extension, the destination hears the
call-waiting tone, if programmed, and the caller hears call-waiting
ringback. The call waits in queue until the transfer return time expires.
Calls answered by picking up a call-waiting call cannot be transferred.
A transfer can be completed by using the Camp-On feature, whether or
not the destination extension is busy. When the feature is used, the
Camp-On return interval is used instead of the transfer return time. The
Camp-On return interval is normally longer.
A transfer can be camped-on only to an inside extension. If a user
presses the programmed Camp-On button or dials the Camp-On
feature code while transferring a call to an outside number, the call to
the outside number is disconnected. The original call remains on hold.
A conference call cannot be transferred. However, a user who starts a
conference sequence can complete it by pressing the Transfer button
and transfer the original call instead of completing the conference.
Likewise, if a transfer originator has one person on hold for transfer and,
after dialing the destination extension or telephone number, decides to
establish a conference call, he or she can press the Conf button to
establish the conference instead of completing the transfer.
Calls transferred to a sender are eligible for Individual and/or Group
Coverage. However, if the sender is using Coverage On/Off to prevent
calls from going to coverage and does not have an available SA or
ICOM button to receive a transferred call, the sender hears a call-
waiting tone, even if an Individual or Group Coverage receiver is
available.
Calls answered on a Primary Cover, Secondary Cover, or Group Cover
button can be transferred using One-Touch Transfer or the Transfer
button.
Transfer returns are not eligible for Individual or Group Coverage.
Data calls cannot be transferred.
In passive bus configuration, if an MLX extension transfers a call, that
call cannot be retrieved if a 2B Data video call is established during the
transfer return interval.
Transfer 571