AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 174

Applications
Transfer
If a caller incorrectly specifies the answering VMI port as the desired
transfer destination station, the VMI port may park the call.
Calls on generic VMI ports cannot be transferred to telephones that have
Remote Call Forward activated.
System Programming
Assign all the MERLIN Attendant ports to a calling group and set the
group type to VMI Generic.
Set Inside (intercom) Dial Tone to outside.
Designate a transfer redirect extension, such as the system operator, to
receive calls that were originally transferred to unanswered or busy
extensions, or to receive calls when a caller fails to respond to the
announcement.
Program all calling groups as Auto-logout. (Auto-logout is the default.)
Assign Privacy to each VMI port used to connect the MERLIN Attendant.
Platform Requirements
The following equipment is required to connect the MERLIN Attendant to the
system:
MERLIN Attendant unit
6-wire modular telephone cord
012 module (a ring generator is required)
NOTE:
Additional TTRs may be needed to allow the 012 module to handle a
large number of voice connections.
The number of MERLIN Attendants required depends on the number of
incoming lines/trunks and the number of busy-hour calls. One is normally
sufficient for handling after-hours calls only and for delayed call handling. Table
4-5 shows these requirements when the MERLIN Attendant is programmed for
Primary Call Handling.
4-18 MERLIN Attendant