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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 (Note) indications on equipped NEAX2400 ICS stations.
term
Note:
D
Series I and II have the Message Waiting Lamp. Call Indicator Lamp on D
as the Message Waiting Lamp.
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:
a.) Incoming call information is sent to the MCI when an Attendant answers.
b.) Control of Call Indicator Lamp based on data from the external CPU.
Feature 2:
a.) Incoming call information is sent to the MCI when a UCD station is called.
b.) Dual Call Forwarding service is possible.
c.) Control of Call Indicator Lamp based on data from the external CPU.
Note:
Feature 2 is not available when a hot line call terminates to a UCD station.
Feature 1
1.
When the Attendant answers a call, the NEAX2400 ICS 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 ICS, 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 CRT/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 ICS 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 ICS.
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 ICS, upon receiving this control data from the MCI, extinguishes or illuminates
the Call Indicator Lamp depending upon the information displayed on the Attendant's CRT/
display.
4.
The called station will be able to receive a message by dialing "0", or by a computer terminal by
entering his/her identification number.
NEAX2400 ICS Business Features and Specifications
NDA-24143, Issue 4
Message Center Interface
Message Center Interface
M-26
term
Series III and E is used
Page 339
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