NEC Neax 2400 Imx Business Features And Specifications

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 301
Lamp Check L-1
L-1 Lamp Check
General Description
This feature allows the Attendant, by pressing the LCHK key, to light all lamps and sound the ATTENDANT
CONSOLE [A-3] buzzer.
Operating Procedure
1. Attendant presses the Position Busy key; the LED lights.
2. Attendant simultaneously presses the HOLD, SRC and L3 keys.
3. All lamps will light.
Service Conditions
1. Every lamp field, including the BUSY LAMP FIELD - FLEXIBLE [B-2], will be lit upon pressing of the
three keys located on the ATTENDANT CONSOLE [A-3].
2. The console lamp test displays the digit 8 in each field of the digital display.
3. When the keys are released, all lamps and digit display fields are immediately restored to normal. 
						

							NEAX2400 IMX Business Features and Specifications
Page 302NDA-24221, Issue 3
L-3 Line Lockout
L-3 Line Lockout
General Description
This feature provides for the automatic release of a station from the common equipment when it has remained off-
hook for longer than the usual interval before dialing. The NEAX2400 IMX may be programmed to return a Howler
Tone to the station in the LINE lock-out mode.
Operating Procedure
For LINE lock-out:
1. User goes off-hook and receives dial tone. 
2. After approximately 12 seconds, if the user has not initiated dialing, he receives reorder tone.
3. After 30 seconds of reorder tone, the station is automatically placed into the LINE lock-out state. 
4. Upon replacing the handset, the station is released from the LINE lock-out state and operation returns to
normal.
For LINE lock-out with Howler Tone:
1. User goes off-hook and receives dial tone. 
2. After approximately 12 seconds, if the user has not initiated dialing, he receives reorder tone.
3. After 30 seconds of reorder tone, a Howler Tone is sent to the station. 
4. Upon replacing the handset, the station is released from the Howler Tone state and operation returns to
normal.
Service Conditions
1. A station in the LINE lock-out state can neither receive nor originate calls.
2. This feature is provided on a system-wide basis.
3. The Attendant cannot activate any feature to a station in the LINE lock-out state.
4. After 30 seconds of reorder tone, the station is automatically placed into LINE lock-out, if the system is
not provided with Howler Tone service.
5. Howler Tone should not be used with OPX lines.
6. Howler Tone can be provided or denied on a system-wide basis.
7. Howler Tone is only sent to analog stations.
Interactions
1. When the BUSY LAMP FIELD - FLEXIBLE (BLF) [B-2] feature is provided, the associated station
status lamp on the ATTENDANT CONSOLE [A-3] will flash, indicating the telephone number is in LINE
lock-out.
2. CALL FORWARDING - DONT ANSWER [C-2, 3]: A call cannot extend a lock-out station via CALL
FORWARDING - DONT ANSWER [C-3].
3. BUSY VERIFICATION [B-3]: Busy verification of a locked-out station results in reorder tone being
heard by the Attendant.
4. NIGHT CONNECTION - FLEXIBLE/FIXED [N-1, 2] with TAS [T-8] feature not active: When the Night
Station is in a lock-out state, calls directed to the Night Station will receive ringback tone. If the TAS [T-
8] feature is active, calls are directed to the Night Bell.
5. CALL WAITING [C-12, 31]: Call Waiting cannot be activated on a station in lock-out. The calling party
will receive reorder tone. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 303
Line Lockout L-3
Interactions (cont’d)
6. CALL HOLD [C-6]: From a special dial tone state, LINE lock-out will occur if a user attempting to place
a station on hold dials the CALL HOLD [C-6] access code and partially dials any number. The sequence
prior to lock-out is: interdigit time-out for 6 seconds, reorder tone for 30 seconds, optional Howler Tone
for 30 seconds. When the station in lock-out goes on-hook, it will be rung by the station on hold. The Busy
Lamp Field will not flash
7. EXECUTIVE RIGHT-OF-WAY [E-1]: Reorder tone will be returned to a calling party that is attempting
Executive Override toward a station in lock-out.
8. THREE-WAY CALLING [T-2]: An attempt to establish a Three-Way Conference with a station in lock-
out will result in the reorder tone being returned to the user making the attempt. The user can return to the
station on hold by switch hook flashing.
9. With the following calls, when a user fails to hang up after the other party has disconnected, the station
will be placed in a lock-out condition after a 30-second reorder tone (time-out), optional 30-second Howler
Tone warning (time-out): 
DIRECT INWARD DIALING (DID) call [D-8] 
STATION-TO-STATION call [S-11]
Trunk-to-Station call
Attendant-to-Station call
10. CALL BACK [C-1]: To activate Call Back, the user dials the appropriate access code after reaching a busy
station. If the user fails to go on-hook within 30 seconds after receiving service set tone, LINE lock-out
will occur. The sequence prior to lock-out is: Service set tone for 30 seconds, reorder tone for 30 seconds,
optional Howler Tone warning for 30 seconds. Call Back cannot be activated toward a station in lock-out.
11. CALL WAITING - ORIGINATING [C-31]: If a user fails to complete dialing of the access code while
attempting to activate CALL WAITING - ORIGINATING [C-31], LINE lock-out will occur.
12. A station in LINE lock-out will be restored to service when the user goes on-hook for 280 milliseconds or
more.
13. MESSAGE REMINDER [M-19D]: A Message Reminder cannot be sent to a station in LINE lock-out.
14. ATTENDANT NIGHT TRANSFER [A-19] is not available if the Night Transfer Station is in LINE
lockout. The caller will hear ringback tone then reorder tone. 
						

							NEAX2400 IMX Business Features and Specifications
Page 304NDA-24221, Issue 3
L-5 Least Cost Routing - 3/6-Digit
L-5 Least Cost Routing - 3/6-Digit
General Description
This feature allows the NEAX2400 IMX to be programmed to route outgoing calls over the most economical facility
(WATS, FX, DDD). Based on the area code and office code dialed (6-digit analyzing), the system examines the
programming tables and chooses the facilities in the order specified. Least-Cost Routing (LCR) may also be
performed on a sender basis (LCR(S)).
Operating Procedure
1. Lift the handset; receive dial tone. 
2. Dial the trunk access code (usually “9”); receive second dial tone. 
3. Dial the area code, office code and number.
4. The system automatically completes the call via the most economical route.
Service Conditions
The following is a step-by-step explanation, which when reviewed in conjunction with the figure on the following
page, will provide better insight as to how the NEAX2400 IMX switch accomplishes LCR:1. If dialing a toll or local call (NPA-NXX-XXXX or NXX-XXXX), routing begins with translation of 3- digit (NPA or NXX) area or office code. For specific numbers, this translation may result in the immediate
selection of the 3-digit routing patterns. If the number dialed is an NPA and 6-digit translation is required,
the NXX code is verified in the SCC (XX) or the FX (XX) Table 
(Note). If the NXX is not located in either
table, refer to Service Condition (3). There is a maximum of 4000 Outgoing Pattern Routing (OPR) Tables
with a maximum of 8 routes for selection.
Note: a
. SCC (XX) is the Special Common Carrier NXX Translation Table.
b . FX (XX) is the FX NXX Translation Table.
2. First-choice route option in an NPA pattern will usually be a Specialized Common Carrier. If a trunk is
available in this group, further digit translation will be required in order to determine whether the called
number is served by the carrier. NXX digit translation will also be required in instances where a call is
routed over a TIE or FX trunk. For these purposes, 4000 NXX patterns are available. 
3. In the case of Specialized Common Carriers, associated NXX patterns will return either a YES or a NO answer to the switch, indicating whether or not the dialed number is within the designated service area of
the selected SCC. If service is available, the switch will seize the trunk and complete the connection. If
the NO answer is returned, the switch searches for the next available trunk group.
4. Calls routed over FX trunk groups may require out-pulsing of prefix digit “1”, depending on the NXX number dialed. For this purpose, another group of associated NXX patterns may be used, operating on the
same YES/NO principle. A YES answer returned to the switch in this instance will result in prefix “1”
being added automatically before sending dig its to the called Central Office.
5. Where the selected route is an FX trunk group, NXX translation may be used to either allow or disallow the connection. This is accomplished via YES/NO answers from a designated group of NXX patterns, and
enables calls to selected Central Office areas to be effectively restricted to only the most economical
routes. 
The routing method described provides some of the most flexible options available for call routing, and
functions  as a highly ef fe ct iv e me th od of  co st contr ol. F or det ails, s ee  t h e  following figure . 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 305
Least Cost Routing - 3/6-Digit L-5
Service Conditions (cont’d)
3/6-digit Least Cost Routing Translation Table, Dialed Number 9-NPA-NXX-XXXX
6. In certain cases, 3 and 6-digit translation will provide sufficient information for identification of the
service area. 4000 separate Outgoing Routing Patterns are available for this circumstance.
7. Up to 8 trunk routes can be in each Outgoing Routing Pattern.
8. STATION MESSAGE DETAIL RECORDING SYSTEM [S-10] may be used in conjunction with LCR -
3/6-DIGIT. The route selected by the switch will be recorded by the SMDR unit.
9. TIE Lines can be included in route patterns.
10. Application of NXX patterns provides for inclusion of multiple common carriers serving different areas.
11. When a TIE Trunk requiring an off-net connection to the local Central Office is included as a route option,
the NEAX2400 IMX can provide a 2.8-second prepause before sending out the selecting signal.
12. Senders (DP or DTMF) are provided with this feature for outpulsing.
13. Pre-translation function minimizes waiting time after dialing. After enough digits are collected to
determine a route, the system starts outpulsing before the station completes dialing the entire number
(LCR - SENDER).
14. If OUTGOING TRUNK QUEUING [O-2] is activated during LCR, all routes listed in the Outgoing
Routing Pattern will be available to the queue, if one of these trunks becomes idle.
15. When LCR - 3/6-DIGIT is provided, the Attendant cannot pass dial tone to a station. The desired number
must be dialed by the Attendant.
16. Stations having different Route Restriction Classes, but using the same LCR - 3/6-DIGIT pattern, can be
denied access to the last choice trunk route(s) in that pattern. Route Restriction Classes may be set up so
that a station dialing an area code can use WATS, FX, and DDD; or only the WATS line, if such an
arrangement is desired. This is a form of forced LCR.
17. NXX patterns may be programmed to restrict all stations in the system from completing calls to specific
NXX numbers over FX trunks.
 
 
      
         
     
 
 
NPA or NXX
Note X = 1-4000
OPR (X) (Note)
4000 OPR 
Tables
4000 NXX Translation 
TablesSCC (XX) Table
2-----------------9
00
9900
99 FX Prefix Table
2-----------------9FX (XX) Table
2-----------------9
Yes/NoYes/No
Yes/No2-----------------9 SCC
Band 5
Band 3
Band 2
DDDFX
SCC 2
Band 5
Band 3
DDD 1 
						

							NEAX2400 IMX Business Features and Specifications
Page 306NDA-24221, Issue 3
L-5 Least Cost Routing - 3/6-Digit
Service Conditions (cont’d)
18. The system will include the ability to detect a dialed DDD number and compare it with a DDD list table
to determine if the call is directed to a facility served by the trunk network. If the dialed number is found
in the DDD list table, a translation is provided to the 7-digit on-net number (ABC-XXXX) served by the
TIE Trunk. This allows an expensive public network dialed number to be trapped and automatically
diverted to an available leased facility. If a TIE Line is not available, the call will be routed as dialed.
19. The NEAX2400 IMX is capable of converting a maximum of 24 receiving digits into a required 24-digit
number entirely. Interdigit pauses can be inserted whenever necessary. This provides for an extremely
flexible numbering plan for a complex network.
20. When deleting the AOPR command, this also deletes the ASDC table using the OPR pattern.
21. Advancing to C.O. line is not available in the FCCS network.
22. The outgoing call using a trunk in the remote node via FCCS link is available. Therefore, Route Restriction
class data must be identical in the FCCS network. For more detailed information, see the NEAX2400 IMX
Fusion Network System Manual.
23. The ASDC command is not applicable in the FCCS network.
24. When using this feature within an FCCS network, deleting the AOPRL/N command also deletes the
ASDCL/N table using the OPR pattern.
25.
(Series 7400 software enhancement) In case of LCRS feature, the system starts connecting and
communication between the calling party and the called party without completing the maximum digits
(MND) of destination number which is set in the AMND command from the calling party.
26.
(Series 7400 software enhancement) LCRS call without completing the MND of AMND command:
a.) ARTI - Assign the parameter DCANS (CDN:54) as “1” to the objected route.
b.) ARTD - Assign the parameter OSGS (CDN:1) as “2” (second dial tone) and LSG (CDN:15) as
other than “12” (CCIS/ISDN) to the objected route class of outgoing trunk.
27.
(Series 7400 software enhancement) This feature is available:
a.) When a call is directly originated from a station via LCRS
b.) When a station/trunk call, once placed on hold, is originated via LCRS
c.) When a trunk call is originated via LCRS (Tandem Connection)
Note:This feature is not available when the LCRS call from a Attendant Console or LCR call by the individual Trunk Access.
Interactions
1. AFRS and AMND tables must correlate to each other. If dialing patterns listed in AFRS are not
programmed in AMND, the calls will not go through. Also, if dialing patterns are not set in AFRS,
including simple local calls, the calls will not go through.
2. LCR(S) provides only route selection based on digits dialed and route availability. Once a route has been
determined to be available because of dialed digits, Route Restriction Class will determine if this route
will be made available to the station. If denied and other routes are available, the same process will occur.
If no other route is available, the user will hear a reorder tone.
3. In ARTD, CDN 9:TQ must be assigned for the LCR(S) Flag Route 31 if Trunk Queuing is to operate in
conjunction with LCR(S).  
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 307
Last Number Called - Single-Line Station L-6
L-6 Last Number Called - Single-Line Station
General Description
When a user originates a station-to-station call or an outgoing trunk call, but the call is not established, this feature
allows the calling station to recall the same destination by dialing only the special code instead of dialing all the
digits of the number.
Operating Procedure
1. Lift the handset; receive dial tone. 
2. Dial the desired partys number. 
3. The call has not been established.
4. Busy tone or reorder tone is heard. 
5. Hang up. 
6. Lift the handset; receive dial tone. 
7. Dial the LAST NUMBER CALL access code (maximum 3 digits). 
8. The system will automatically redial the last number dialed from that station.
Service Conditions
1. The number of dial digits to which this service is applicable is 18 maximum.
2. Dialing any digits after going off-hook causes previously stored digits to be erased from memory and the
new digits to be programmed into memory.
3. In a STEP CALL, the final combination of digits is stored in memory. For example, dial 201, 201 is busy;
dial 2, station 202 rings; station 202 is stored in the LAST NUMBER CALLED memory.
4. In CALL FORWARDING [C-2, 3, 5], CALL PICKUP - GROUP [C-7], and STATION HUNTING [S-7,
8, 9], the number stored is the number dialed, i.e. the number displayed in the INTERMEDIATE
STATION NUMBER DISPLAY - D
term [I-10D].
5. This feature can be activated when the station accesses STATION-TO-STATION CALLING [S-11] or
station-to-trunk calling.
6. SPEED CALLING - SYSTEM [S-3, S-21], or GROUP [S-23] numbers (abbreviated digit codes) can be
stored in the LAST NUMBER CALLED memory.
7. An AUTHORIZATION CODE [A-20] will not be stored, and must be entered each time the LAST
NUMBER CALLED is accessed.
Interactions
LAST NUMBER CALLED will operate for both internal and outgoing calls. 
						

							NEAX2400 IMX Business Features and Specifications
Page 308NDA-24221, Issue 3
L-6D Last Number Called - Dterm
L-6D  Last Number Called - Dterm
General Description
This feature allows the user of a Dterm to store the last five numbers dialed, and to redial the numbers by pressing
the REDIAL key. The Dterm user can choose any destination out of the last 5 calls that have been stored in memory,
thus enabling the user to place a call without redialing the full number.
Operating Procedure
How to check the dialed numbers stored in the memory (up to 5 destinations):
1. Press the REDIAL key on a Dterm.
a.) The Prime Line lights green.
b.) The Speaker Lamp lights green.
c.) Receive dial tone from the speaker with the following display on the D
term.
2. Press the REDIAL key on the D
term again.
a.) The Prime Line lights green.
b.) The Speaker Lamp lights green.
c.) Receive dial tone from the speaker with the following display on the D
term.
Note:The indication on the display is changed in sequence by pressing the REDIAL key. Once the stored telephone number
display reaches LNR[#]/SPEED[]-5, LNR[#]/SPEED[]-1 appears again by pressing the REDIAL key.
How to originate a call:
3. Press the REDIAL key on a Dterm.
a.) The Prime Line lights green.
b.) The Speaker Lamp lights green.
c.) Receive dial tone from the speaker with the following display on the D
term.
4. Repeat the above procedure until you reach your desired destination.
5. Press “#” to originate your call while the desired destination is being displayed on the D
term.
a.) The Prime Line lights green.
b.) The Speaker Lamp lights green.
c.) Receive ringback tone from the speaker with the following display on the D
term.
LNR [*] / SPD [_ _ _] - 1
811625643
MIC         FDB                   FDN                >>>
LNR [*] / SPD [_ _ _] - 2
25191
MIC         FDB                   FDN                >>>
LNR [*] / SPD [_ _ _] - 1
811625643
MIC         FDB                   FDN                >>>
LNR [*] / SPD [_ _ _] - 4
  82625191
MIC         FDB                   FDN                >>>
                  82625191
          10:24   AM   FRI   15  
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 309
Last Number Called - DtermL-6D
Operating Procedure (cont’d)
6. The called party answers the call.
a.) The Prime Line lights green.
b.) The Speaker Lamp is OFF.
Service Conditions
1. A maximum of 5 destinations can be stored.
2. The maximum digits of the destination is 32 digits.
3. When a feature key has been assigned as Last Number Called, the feature key also works as REDIAL key.
4. This feature is also effective when the calling party presses the REDIAL key while the SPEAKER key is
being pressed.
5. When the REDIAL key is pressed, # or the REDIAL key must be pressed within 12 seconds. Otherwise,
the calling party hears reorder tone.
6. The calling party can enter abbreviated codes after pressing the REDIAL key.
7. Any number entry (other than #) from a D
term after pressing the REDIAL key is recognized as abbreviated
code(s) (1 or 2 digits) of SPEED CALLING-STATION.
8. A D
term can display the upper 16 digits among the stored 32 digits.
9. When any destination has not been stored in the system, which occurs after initialization of the circuit card,
the D
term displays no destination as shown below.
10. When a D
term user dials the same destination that has already been stored in the system, the newly dialed
destination is stored in the following manner:
11. The number dialed during the call can be stored as the LAST NUMBER CALL - stock redial with a
maximum of 32 digits.
                  82625191
          10:24   AM   FRI   15 
LNR [*] / SPD [_ _ _] - 1
MIC  FDB  FDN      >>>
blank
No. 25000
Newly Dialed Numbers Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
No. 82625191
No. 40001
No. 982111
No. 25000
No. 303
Removed
Stack Memory
Previously Stored DestinationsNewly Stored
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
No. 25000
No. 82625191
No. 40001
No. 9821111
No. 303
Stack Memory
Newly Stored Destinations 
						

							NEAX2400 IMX Business Features and Specifications
Page 310NDA-24221, Issue 3
L-6D Last Number Called - Dterm
Service Conditions (cont’d)
12. If making an abbreviated call using the REDIAL key, the number dialed is not stored. Therefore, redialing
through LAST NUMBER CALL - stock redial is not available. A newly dialed destination is stored in
accordance with the following flowchart:
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
Yes
No
The dialed destination and the number stored in the Stack Memory 2 are the same?
The dialed destination and the number stored in the Stack Memory 1 are the same?
NoDialed No.  
Stored
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
Yes
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
Dialed No.  X
Abandoned
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
The dialed destination and the number stored in the Stack Memory 3 are the same?
Yes
NoX
 Removed
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
Dialed No.  
Stored
Stack #1
Stack #2
Stack #3
Stack #4
Stack #5
X
 Removed
A