AT&T MERLIN LEGEND Release 4.0 Feature Reference page 541

Feature Reference
Coverage
Digital Data Calls
Display
Do Not Disturb
Forward and
Follow Me
Group Calling
When a Primary Cover, Secondary Cover, or Group Cover button is
programmed, a call received on an SA or ICOM button that is eligible
for Individual or Group Coverage remains on the sender's SA or ICOM
button until it is answered at the receiver's telephone. Once answered
by a receiver, the call is removed from the sender's SA (including
Shared SA) or ICOM button. However, when a calling group is
programmed as a Group Coverage receiver, the call is removed from
the sender's telephone as soon as it is sent from the calling group
queue to an available member.
Calls received on Shared SA buttons are not eligible for Individual or
Group Coverage.
If a receiver has a Primary Cover, Secondary Cover, or Group Cover
button for a sender and also has a Shared SA button associated with
the sender, the green LEDs next to both the Cover button and the
Shared SA button flash when a call arrives for the sender. In addition,
the red LED stays on at the Shared SA button.
Data calls cannot be presented as voice calls, although they can make
calls using ICOM or SA Voice Announce buttons.
If a user with a display telephone calls an extension and the call is
answered at a Shared SA button, the caller's display shows the
principal extension, not the answering extension.
When Do Not Disturb is turned on at the principal extension, calls do not
ring at that extension or at other telephones with Shared SA buttons for
that extension.
When a telephone user with Shared SA buttons forwards his or her
calls, only calls to his or her extension are affected. Calls ringing on a
Shared SA button are not forwarded.
If a calling group member is busy on a Shared SA button, the principal
extension is still considered available.
If a delay announcement for a calling group is a principal extension that
has Shared SA buttons on other telephones, and if a user uses a
corresponding Shared SA button to join the announcement while a
caller is listening to it, the call is removed from the calling group queue
and both parties are connected. (The delay announcement is not
disconnected until it finishes playing.)
If a call from the SA button of a user at a principal extension with
Shared SA buttons is waiting in the calling group queue, other users
cannot use the corresponding Shared SA buttons to join the call.
System Access/Intercom Buttons
541