NEC NEAX2400 system manual Centralized Message Center Interface EX-FCCS

EX- FCCS

EX-FCCS Features

3.4Centralized Message Center Interface - EX-FCCS

This section explains the conditions of Centralized Message Center Interface feature within EX-FCCS Net- work. This feature provides an interface to the external CPU for Message Center (MC) information when a specified UCD group in the network is called. This interface allows external control of Message Waiting Lamp (MWL) indications on equipped PBX stations.

Note: Calls terminated to a UCD hunt group within a FUG will output MCI data to the Centralized MCI output port for that FUG if assigned. Each FUG that requires a message center interface must have a message center interface assigned within the FUG,

•The number of digits to be indicated for MCI message (in case 7 or 8-digit Telephone Number is used) is determined by the following system data.

ASYD SYS1, INDEX246, b3. Maximum valid number of MCI digits is, 0/1=6 digits/8 digits.

Note: MCI equipment must be able to support 8-digit numbers.

•Centralized MCI feature is activated by assigning MCI equipment and UCD group at Centralized Of- fice for the specific FUG. (MCI message cannot be transferred to the Centralized Office via EX-FCCS.)

FUG1 (Center FUG) UCD FUG2

IVS2

(a)

Node	Node	Node	Node	Node	Node	Node	Node	IVS2
A	B	C	D	E	F	G	H

		(b)	(c)	(d)
UCD	UCD

	MCI		MCI
EX-FCCS		Direction of MCI message
FCCS (Fusion Call Control Signal)		Direction of a call
Enhanced CCIS

(a)Message data is transferred to the offered MCI (connected to Node B) in FUG1, given that a call from a station in IVS2 node terminates to a UCD station (in Node A shown in the figure) within FUG1 via EX-FCCS.

(b)Message data is transferred to the offered MCI (connected to Node B) in FUG1, given that a call from any station within FUG2 terminates to a UCD station within FUG1 via EX-FCCS.

(c)If a call from Node F terminates to a UCD station in Node E, the message cannot be transferred to the MCI connected to the Centralized Office. In this case, the message is sent to the MCI connected to Node H within FUG2.

(d)Message data is transferred to the shared MCI (connected to Node H) in FUG2 when a call from any station terminates to a UCD station in the same Fusion Group.

CHAPTER 8 ND-70185 (E)

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