NEC NEAX NDA-24349 - Manual (Page 215)

Chapter 10 System Input/Output (I/O) Interfaces
NEAX 2000 IPS Request for Proposal (RFP) Reference Guide Page 10-7
NDA-24349, Issue 4
Message Center Interface (MCI)
This feature provides an interface with a customer supplied Voice Mail System (VMS) which
can send Message Waiting lamp control data to the system.
The Message Center Interface (MCI) can provide the following operations:
1. When terminating the call to the VMS, the system sends call connection status information
to the VMS through the MCI.
2. The VMS sends the Message Waiting Lamp on data to the MCI.
3. The system, upon receiving this control data from the MCI, illuminates the Message
Waiting lamp of the corresponding station.
4. The VMS, upon receiving retrieved message information, will send the Message Waiting
lamp control data requesting the system to extinguish the Message Waiting lamp of the
corresponding station.
Service Conditions
ƒ The Voice Mail System (VMS) is interfaced to the system through the 4LCD/8LC card. (The
4LCD/8LC provides disconnect supervision in the form of a momentary loop open.)
ƒ The UCD or Station Hunting feature is usually provided with the VMS station.
ƒ One RS-232C port on the MP card or the Application Processor (AP00) is required to make a data
link with a customer supplied VMS.
ƒ Messages can be retrieved from any Multiline Terminal, DTMF telephone, or the Attendant
Console, but not from DP telephones.
ƒ The MCI is available to a direct call or a forwarded call from a station/trunk/Attendant to the VMS.
ƒ Stations can set Call Forwarding or Split Call Forwarding - All Calls, No Answer, and Busy Line to
the VMS. The system sends out incoming call information to the VMS. A call to a station that has
Call For-warding set to the VMS is automatically answered by the VMS.
ƒ The MCI can control the LCD display of a Multiline Terminal for “MESSAGE” Indication. The
number of messages is not displayed.