AT&T MERLIN LEGEND System Reference Manual page 484

Functional Description
FCC Registration
Shared System Access buttons are often provided to secretaries and their
bosses, as well as to others who work closely together, such as a customer
service department. For inside calls, the button can be programmed for
either voice or ring operation.
Pool buttons are used to make outside calls using a specific trunk pool. To
make an outside call, the user presses the appropriate Pool button-no dial-
out code is necessary.
Personal line buttons are used to dedicate an outside trunk for use by one
or more telephones in the system. The Personal Line button is used to make
and receive only outside calls. To make a call, the user dials the area code
and telephone number—no dial-out code is necessary.
A combination of up to ten System Access Voice, System Access Ring, System
Access Outgoing Only and/or Shared System Access buttons can be assigned
to each telephone (excluding QCC system operator positions). The number of
Personal Line or Pool buttons that can be assigned to a telephone is limited only
by the number of lines or pools allowed in the system and the number of buttons
available on the telephone.
Queued Call Console
The type of system operator position typically used in the Hybrid/PBX mode is
the queued call console (QCC), which allows calls to come to the system
operator one at a time. This is especially useful when the number of outside
lines connected to the control unit exceeds the number of buttons available on a
direct-line console (DLC).
A call is held in queue until the system operator is available. After the call is
delivered to a "Call" button on the console, the operator transfers the call to the
desired internal destination. The operator can switch between the caller and the
called person to screen calls.
The AT&T account representative or authorized dealer who planned the
system's mode of operation provides the FCC registration number that the
customer reports to the local telephone company. For Hybrid/PBX mode this
number includes the letters "MF." The guidelines used to determine the system's
classification are as follows.
MF Classification
The system is registered under the MF classification in either of these cases:
There are no directly terminated trunks (all the trunks in the system are
pooled).
The only directly terminated trunks are personal, not shared, lines—that is,
only one telephone accesses the trunk.
The registration number for this type of system is AS593M-72682-MF-E.
Modes of Operation 4-15