NEC Neax 2400 Imx Business Features And Specifications

NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 211
Dial Monitor - DtermD-13D
D-13D Dial Monitor - Dterm
General Description
This feature provides for dialed digits to appear on the Dterm LCD display.
Operating Procedure
1. Lift the handset or press the SPEAKER key; receive dial tone. 
2. Dial the desired number; the digits will appear in sequence on the LCD display.
Service Conditions
1. Digits appear from the right and move to the left as additional digits are dialed. A...

NEAX2400 IMX Business Features and Specifications
Page 212NDA-24221, Issue 3
D-15 Day/Night Class of Service
D-15 Day/Night Class of Service
General Description
This feature permits any station to be assigned one CLASS OF SERVICE - INDIVIDUAL [C-15], for day and
another for night. System Data can be programmed so that once the ATTENDANT CONSOLE [A-3] has entered
the NIGHT CONNECTION [N-1,2] mode, a stations CLASS OF SERVICE - INDIVIDUAL [C-15] will be
automatically changed when required. Class may be...

NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 213
Day/Night Class of Service D-15
Service Conditions (cont’d)
10. When the Attendants NITE key or external switch is turned ON and OFF repeatedly, the messages printed
out and the operation may not coincide, but the system message will represent the final day/night mode.
11. In the following cases, day/night mode is not changed when the external switch is turned ON, and only the
system message is printed out: 
a.) When neither...

NEAX2400 IMX Business Features and Specifications
Page 214NDA-24221, Issue 3
D-15 Day/Night Class of Service
Interactions (cont’d)
3. DAY/NIGHT CLASS OF SERVICE affects the following restrictions:
a.) Route Restriction Class (ARSC)
b.) Service Feature Class (ASFC)
c.) Toll Restrictions (ATDP)
d.) Tenant Restrictions (ATNR)
4. When TRUNK ANSWER FROM ANY STATION (TAS) [T-8] is installed, a station’s Night RSC must
allow access to the IC trunks. Also, the Night SFC must allow TAS, SFI 13. 

NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 215
Direct Digital Interface D-16
D-16 Direct Digital Interface
General Description
This service feature provides the capability to connect trunks from the NEAX2400 IMX directly to “T1” carrier links
via either private or public network.
Operating Procedure
No manual operation is required.
Service Conditions
1. The DTI provides signalling interface, bipolar/unipolar conversion, frame synchronization, insertion/
extraction and alarm...

NEAX2400 IMX Business Features and Specifications
Page 216NDA-24221, Issue 3
D-16 Direct Digital Interface
Service Conditions (cont’d)
b.) Sub-Source Office: This office operates using a Phase Lock Oscillator (PLO) to synchronize with
the clock at the Source Office. If the Source Clock has some failure, office can operate using its
own backup oscillator.
c.) Receiver Office: This office is arranged so it will have at least two clock routes, one for Receiver
and the other for standby. Synchronization...

NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 217
Direct Digital Interface D-16
Service Conditions (cont’d)
Network Clock Synchronization
 
 
 
 
NEAX2400 IMX 
(Source Office)LEGEND
DTI: Digital Trunk Interface Card
PLO: Phase Lock Oscillator
     : Speech Path
- - -: Clock Route DTI
DTI
DTI
DTI
DTI
DTI
DTI
DTI
DTI
DTI
DTI
DTIDTI
DTI
DTI
DTI
PLO PLOPLO A
NEAX2400 IMX 
(Receiver Office)NEAX2400 IMX 
(Receiver Office)
A 

NEAX2400 IMX Business Features and Specifications
Page 218NDA-24221, Issue 3
D-31 Delay Announcement - UCD
D-31 Delay Announcement - UCD
General Description
This feature provides recorded announcement service for an incoming call directed to a busy UNIFORM CALL
DISTRIBUTION (UCD) [U-1] group and placed in a waiting queue. The recorded announcement occurs after a
predetermined time in the queue.
Operating Procedure
No manual operation is required.
Service Conditions
1. Up to eight announcement machines...

NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 219
Delay Announcement - UCD D-31
Service Conditions (cont’d)
Announcement Recording 
The figure below illustrates the three possible Delayed Announcement recording patterns.
Delayed Announcement Recording Patterns
10. Delay Announcement Trunk (DAT) in the node accommodating the UCD controlling station must be used
for this feature for the FCCS network.
Interactions
1. UNIFORM CALL DISTRIBUTION [U-3] must first be provided.
2. When...

NEAX2400 IMX Business Features and Specifications
Page 220NDA-24221, Issue 3
D-32D Dual Hold - Dterm
D-32D Dual Hold - Dterm
General Description
This feature allows two Dterms to simultaneously be placed on hold. This allows the held parties to answer or
originate a call from a subline appearance or the idle prime line.
Operating Procedure
To place a call in a DUAL HOLD-Dterm condition:
1. When two Dterms are connected, either Dterm user can press the pre-assigned HOLD key and place the
other Dterm on...