AT&T MERLIN LEGEND System Reference Manual page 236

Features
Single-Line Telephones
Mode Differences
Considerations
T change the availability of a calling group member, the supervisor activates
O
Extension Status (if not already active), and presses a programmed button for
Available (extension status 2) or Unavailable (extension status 0) and the Auto
Dial or DSS button for the group member's extension number. The supervisor
can also change the status of telephones by pressing the Feature button, dialing
the feature code (762 for Available and 760 for Unavailable), and pressing the
Auto Dial or DSS button for the group member's extension number. A supervisor
with an MLX display telephone can change the status of telephones by pressing
the Feature button, selecting the feature from the display (ES2 On for Available
and ES Off for Unavailable), and pressing the Auto Dial or DSS button for the
group member's extension number.
Calling group members log into the group by pressing the programmed
Available button or by pressing the Feature button and dialing 44. To log out,
the group member can press the programmed Available button or can press the
Feature button and dial *44.
To see the number of calls waiting in queue (1-99), the. supervisor or group
member with an MLX display telephone presses the Inspect button followed by
the programmed Calls-In-Queue Alarm button. The Inspect feature cannot be
used for a Calls-In-Queue Alarm button on a DSS. An analog multiline user
cannot use the Inspect feature.
A calling group member with a single-line telephone can log into and out of the
calling group by lifting the handset (which must be connected to an Intercom or
System Access line) and dialing #44 to log in or #*44 to log out.
Calls to calling groups in a system set up in Behind Switch mode do not follow
the central office ring pattern.
A system can have a maximum of 32 calling groups with a maximum of 20
members per group.
Calling groups with no members are allowed. If a call is received at the
calling group, it is immediately sent to the calling group queue. If no overflow
coverage is programmed or the call is not answered at a personal line, the
call continues to ring in the queue until the caller hangs up.
Each group can have a separate delay announcement device (a maximum of
32 devices per system), and each device can be assigned to more than one
calling group.
The delay announcement device should not be programmed as a calling
group member.
Only one external alert can be assigned to each calling group. An external
alert cannot be assigned to more than one calling group.
Group Calling 2-187