AT&T MERLIN LEGEND System Reference Manual page 447

System Applications
System Feature Interactions
Extention Status
Group Calling
System Numbering
System Programming
A CMS supervisor uses the Extension Status feature to control and monitor when
agents are in the available, unavailable, or ACW state. A CMS agent does not
have to be a member of a calling group to use the available/unavailable status.
The system can be programmed for CMS or for Hotel/Motel Extension Status,
but not for both.
CMS agents log in and out of CMS by using the same buttons or codes as
calling group members.
To renumber the CMS agent extensions in the system, you must use the 2-digit
extension numbering plan.
Set basic system operating conditions:
Select the 2-digit System Renumbering plan (2-digit is the factory setting).
Set Transfer Return Time for three to five rings.
Set Transfer Audible to Ringback.
Select the Group Calling/CMS option for the Extension Status feature.
Remove CMS lines from all telephones (Key mode only) or remove CMS lines
from trunk pools (PBX mode only)
Set up three direct-line console (DLC) system operator positions, two for
CMS PC positions and one for the CMS supervisor position:
Assign the positions.
Assign CMS lines and external alerts to the CMS supervisor's console,
and copy the assignments to the CMS PC ports.
Set up CMS fallback plan:
Designate the CMS supervisor console as a Group Coverage sender.
Assign the agent telephones to a calling group and assign Group
Coverage to the calling group.
Set up optional equipment and features, including headsets and paging
groups.
Set the ringing options for lines assigned to VMI ports to "no ring."
Call Management System 3-15