NEC NEAX 2000 Programming Manual page 337

SYSTEM OPERATION
As shown below, a direct call or a forwarded call from a station/trunk/Attendant terminates to the
VMS station in UCD group or Hunting group.
When the call is terminated to the VMS, the AP00 sends a call connection status information to
the VMS through the MCI. If the ANI information is sent from the network, the ANI information
can be added to the call connection status information by the system data programming (this fea-
ture is not available when the call is received from the CCIS trunk to the VMS). When the station/
trunk/Attendant leaves a message in the VMS, the VMS sends a Message Waiting lamp ON data
for the appropriate station through the PBX. After the station retrieves the messages, the VMS
sends a Message Waiting lamp OFF data for the appropriate station through the PBX.
The connecting patterns to the VMS are as shown in the following pages.
Single Line
Telephone
term
D
(Call Forwarding Set)
VMS
Message Waiting
lamp on/off data
MCI System Operation
TDSW
LC
DLC
1
LC
LC
UCD Group
or Hunting Group
RS-232C Cable
– 317 –
MESSAGE CENTER INTERFACE (MCI)
PBX
TRK
2
AP00
MP
1 : Forwarded Call from a trunk
2 : Direct Call from a station
SYSTEM OPERATION
NETWORK
Connection
Status data
A2315-10