AT&T MERLIN LEGEND Key System Planning page 110

Features
4-12
Group Assigned Features
Two types of receivers can be programmed:
Multiline telephones. A maximum of eight Group Cover buttons can be
programmed for each coverage group. All eight can be programmed on one
multiline telephone or the Group Cover buttons can be distributed over up to
eight multiline telephones.
A single receiver can have more than one Group Cover button for the same
coverage group; however, each programmed button is counted in the eight
Group Cover button maximum for the group.
Single-line telephones cannot be programmed individually as Group
Coverage receivers; however, if a single-line telephone is programmed as a
member of a calling group, it can receive Group Coverage calls.
A receiver can program each Group Cover button for immediate ring,
delayed ring, or no ring.
Calling groups. If a calling group is programmed as a receiver for a
coverage group, it can be the only Group Coverage receiver for the group.
No other types of group receivers can be programmed; however, both
primary and secondary Individual Coverage receivers can be assigned.
When a calling group is assigned a receiver, the calls enter the calling group
queue and are delivered to the first available member. Since calls are sent to
the queue, Cover buttons are not needed.
When a calling group is programmed as a receiver, or both Individual and
Group Coverage are programmed for a sender, Group Coverage has a system-
wide Cover Delay Interval. The delay interval is the number of rings before a call
is sent to the receiver.
Assign Group Coverage when more than one sender requires the same
coverage arrangements—for example, for all members of a department whose
calls are answered by a secretary. Also consider assigning more than one
Group Cover button on one receiver's telephone (for example, on a DLC) if a
coverage group is expected to get large numbers of calls.
You can assign up to 30 coverage groups, each with an unlimited number of
members. Coverage senders can be a member of only one group.
Note: Group Coverage can be used alone or can be setup to work with either
primary or secondary Individual Coverage, or both. This allows callers to get
personal attention from the primary and/or secondary Individual Coverage
receiver and backup from Group Coverage. For example, a receiver such as a
secretary can have a Primary Cover button to provide Individual Coverage for a
sender who is also a member of a coverage group.
Decide the interval for Coverage Delay and for Delayed Ring (the number of
rings before a receiver telephone with the Delayed Ring option begins to ring).
You can change the factory-set, three-ring Coverage Delay Interval to an interval
of from one to nine rings. The factory-set Delayed Ring Interval of two rings can
be changed to an interval of from one to six rings.