AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 193

Applications
SMDR
CAS-IS II uses the call information provided by the system's built-in
SMDR feature to process calls. There are two system formats for
SMDR—basic and PRI.
Transfer
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 telephone, the VMI port can inadvertently park the
call.
Any calling group, calling group member, or telephone can be
programmed to be a voice messaging system (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.
System Programming
The following must be programmed when IS II includes IVP AA:
Designate Inside (Intercom) 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 to 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 a 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 system.
Integrated Solution II (IS II) 4-37