AT&T MERLIN LEGEND System Reference Manual page 212

Features
See Chapter 3 for more on CMS.
Telephone Differences
Multiline Telephones
Group Calling/CMS. A calling group or CMS supervisor can use Extension
Status to monitor the availability of agents who can take calls directed to the
calling group. The status and LED indication can be one of the following:
Status 0—LED is off. Telephone is signed out from the group and the
member is unavailable to take calls.
Status 2—LED is on. Telephone is signed into the group; calls can be
sent to the group member.
Status 1—LED is flashing. Used for CMS only. Telephone is in the "After
Call Work" state; group member is unavailable to take calls.
In either the hotel or Group Calling/CMS configuration, a system operator or a
calling group or CMS supervisor with a DLC can change the status of an
extension by either using a programmed button or pressing the Feature button
and dialing a code. In addition, users with any type of telephone can change to
Status 1 and Status 2.
In the Group Calling/CMS configuration, users can change sign-into the group
by changing to status 0; however, in the hotel configuration, an extension can
be changed to status 0 only from a DLC.
Only a telephone assigned as a DLC can activate Extension Status to see the
status of telephones. In the Hotel configuration, the feature is assigned to the
console in system programming and is always active on the console unless the
system operator presses the Message Status button to use the Auto Dial or DSS
buttons to see message-waiting status for each telephone.
To activate Extension Status in the Calling Group/CMS configuration, the calling
group or CMS supervisor assigned as a DLC presses the Feature button, dials
32, and presses the Hold button. To deactivate the feature and return to normal
call handling, the supervisor presses the Feature button, dials 32, and presses
the Drop button.
To change the status of a telephone, the system operator or supervisor activates
Extension Status (if not already active) and then presses a programmed button
for status 0, status 1, or status 2, and the Auto Dial or DSS button for the
telephone. The system operator or supervisor can also change the status of
telephones by pressing the Feature button, dialing the feature code (760 for
status 0, 761 for status 1, and 762 for status 2), and pressing the Auto Dial or
DSS button for the telephone.
Note: MLX display telephone users see only the first three characters dialed (for
example, F76) when changing the status of telephones.
In either the hotel or calling group/CMS configuration, regular multiline telephone
users can change to status 1 or 2 by pressing a programmed button for each
state or by pressing the Feature button and dialing the feature code (45 for
status 1 or 44 for status 2). In the calling group/CMS configuration only, the user
can change to status 0 by pressing the Feature button and dialing *44.
Extension Status 2-163