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M-26
General Description
This feature provides an interface to an external CPU for Message Center information when a specific UCD [U-1]
group or ATTENDANT CONSOLE [A-3] is called. This interface allows external control of Call Indicator Lamp
indications on equipped NEAX2400 IPX stations. This feature also provides a socket interface (LAN interface) for
connection to an external LAN. This feature also provides a socket interface (LAN interface) for connection to an
external LAN.
Call Indicator Lamp on D
Note:
Operating Procedure
The MESSAGE CENTER INTERFACE (MCI) can provide one of two modes of operation. These modes are
described as Feature 1 and Feature 2. The functions of each feature are as follows:
Feature 1
1.
Incoming call information is sent to the MCI when an Attendant answers.
2.
Control of Call Indicator Lamp based on data from the external CPU.
Feature 2
1.
Incoming call information is sent to the MCI when a UCD station is called.
2.
Dual Call Forwarding service is possible.
3.
Control of Call Indicator Lamp based on data from the external CPU.
Feature 2 is not available when a hot line call terminates to a UCD station.
Note:
Feature 1
1.
When the Attendant answers a call, the NEAX2400 IPX transmits a call handling record to the MCI. The
external CPU, based on the received data, will display a profile of the station/trunk being handled by the
Attendant on the CRT.
2.
Call Indicator Lamp control is based on data from the external CPU. Through the external CPU terminal,
when information is registered, the Host/CPU system forwards Call Indicator Lamp control data according
to the Call Indicator Lamp On/Off control information sent.
3.
The NEAX2400 IPX, upon receiving this control data from the MCI, will extinguish or illuminate the Call
Indicator Lamp, depending on the subscriber displayed on the Attendant's monitor/display.
4.
The called station will be able to receive a message from the Attendant by dialing "0", or a computer
terminal by entering an identification number.
5.
The external CPU, upon receiving retrieved message information, will transmit a data record requesting
the NEAX2400 IPX to extinguish the Call Indicator Lamp of the corresponding station.
Feature 2
1.
This provides an interface to a Voice Mail System, or a Message Center Computer that is capable of
sending Call Indicator Lamp control data to the NEAX2400 IPX.
2.
To perform the data transfer to the external CPU, a station/trunk is connected to a designated UCD [U-1]
group. The stations of the UCD [U-1] group are connected to the Voice Mail System/Message Center
System in order to collect call connection status of Call Indicator Lamp control information. The block
diagram of this concept follows on the next page.
3.
The NEAX2400 IPX, upon receiving this control data from the MCI, extinguishes or illuminates the Call
Indicator Lamp depending upon the information displayed on the Attendant's monitor/display.
NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
Message Center Interface
Message Center Interface
term
Series E is used as the Message Waiting Lamp.
M-26
Page 503
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