AT&T MERLIN LEGEND System Reference Manual page 452

System Applications
Night Service
Station Message Detail
Recording
Transfer
System Programming
3-20 Integrated Solution II
If the AVP Automated Attendant only handles after-hours calls, a dummy station
(an unused station jack) must be programmed as a member of a Night Service
group associated with a system operator. In turn, this dummy station is covered
by a calling group with integrated VMI ports as members. If an incoming call is
not answered in the programmed number of rings, the control unit sends the call
to the calling group with the VMl ports. Because of prior programming, AVP
recognizes the call to be from the dummy station and provides Automated
Attendant service rather than the usual Call Answer service.
CAS—IS II uses the call information provided by the communications system's
built-in SMDR feature to process calls.
Note: There are two formats for SMDR: basic and ISDN-PRI.
VMI ports can transfer an incoming call to an outgoing line/trunk.
If a caller incorrectly specifies the answering VMI port as the desired transfer
destination station, the VMI port can inadvertently park the call.
Any calling group, calling group member, or station can be programmed to be a
VMS transfer redirect extension. If a QCC is programmed as such, the transfer
redirect call is delivered to the QCC as a returning call and is not placed in the
QCC queue.
If a transferred caller gets no answer and returns via voice mail to the system
operator, the system operator has no indication of the origin of the call.
The following must be programmed when IS Il includes IVP AA:
Designate inside dial tone to be the same as the outside line/trunk dial tone.
Assign all Automated Attendants connected to the system to the same
calling group and set the group type as "VMI Generic."
Program each VMI loop-start port for "reliable" far-end disconnect.
Designate a backup position, such as the system operator, to receive calls
that were originally transferred to unanswered or busy extensions or when a
caller fails to respond to the message.
Specify the number of rings before a call transferred by the voice messaging
system is sent to the backup position.
The following must be programmed when IS II includes AVP:
Assign AVP ports to a calling group and specify the group type as "VMI
Integrated."
Program each VMI loop-start port for "reliable" far-end disconnect.
Specify the touch-tone duration and interval between digits in codes sent
between the AVP and the communications system.