NEC Neax 2400 Imx Business Features And Specifications

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 411
Passing Dial Tone P-2
Interactions (cont’d)
2. The associated programming that should be examined is ATTENDANT CONSOLE [A-3], TOLL
DENIAL/TOLL DIVERSION [T-7], TOLL RESTRICTION-3/6 DIGIT [T-8], LEAST-COST
ROUTING-3/6 DIGIT [L-5], CLASS OF SERVICE-INDIVIDUAL [C-17], and the various trunk access
features. 
3. NIGHT CONNECTION FIXED/FLEXIBLE [N-1, 2]: The NIGHT CONNECTION FIXED/FLEXIBLE
stations cannot pass dial tone to another station.
4. ATTENDANT NIGHT TRANSFER [A-19]: The ATTENDANT NIGHT TRANSFER station cannot
pass dial tone to another station. 
5. When LEAST-COST ROUTING-3/6 DIGIT [L-5] is programmed, the ATDP tables will be affected.
During feature operation, the Attendant will dial the route access code and then release dial tone to the
station. Because that route is assigned in ARNP tables against the LCR (S) access codes, the ATDP tables
must also use the LCR (S) access code. For example, the Attendant dials 81 and releases. The station dials
1-516-753-7526. ATDP must be programmed as DC: 9151 and TDI: 1, allowed; not as DC: 81151.
(ARNP for the route in this example is assigned with the access code = 9.)  
						

							NEAX2400 IMX Business Features and Specifications
Page 412NDA-24221, Issue 3
P-3 Power Failure Transfer
P-3 Power Failure Transfer
General Description
This feature provides for certain specified trunks to be automatically connected to designated stations in the event
of a loss of AC power. It is normally used when the system is not equipped with reserve power.
Station Application
Operation is automatic if there is loss of input power to the system.
Service Conditions
1. If the Central Office is wired ground start, stations must be equipped with ground buttons to complete calls
over the exchange network.
2. Power failure station lines should not be wired to common bells. These require outside power sources and
will not operate.
3. Type of telephone set (DP or DTMF) connected to CO line via POWER FAILURE TRANSFER shall
correspond to the signaling system of the Central Office.
4. The maximum number of POWER FAILURE TRANSFER circuits per PIM is 24 (12 circuits per
package).
5. The Power Failure Trunk (PFT) and associated Central Office Trunk should be in the same PIM.
6. When the POWER FAILURE TRANSFER feature is activated, telephone service is limited to incoming
calls and/or outgoing calls via the serving Central Office. DID calls cannot be received.
7. D
terms cannot be used as Power Failure stations.
8. All calls in progress and/or established calls are lost when a POWER FAILURE TRANSFER occurs.
When commercial power is restored, the NEAX2400 IMX is automatically reinitialized. Back-up service
is provided via the HDD unit to retain the following features: 
CALL FORWARDING [C-2, C-2D, C-3, C-3D, C-5, C-5D]
SPEED CALLING - GROUP [S-23]
SPEED CALLING - STATION [S-21]
NAME DISPLAY DATA [N-28]
Interactions
1. A PFT circuit card is required. 
2. The POWER FAILURE TRANSFER station and Central Office trunk must be on the same Module
Group.
3. When power is lost and the POWER FAILURE TRANSFER (PFT) feature is activated, telephone service
is limited to incoming and outgoing calls via the predesignated PFT stations. 
4. DID service will be lost, as this service is dependent on the operational status of Incoming Register Trunks
(IRTs). 
5. When power is lost, all calls (station-to-station and station-to-trunk) are lost. When power is restored, PFT
calls will stay up until manually disconnected by the participants. Service to the PFT stations is then
restored to normal. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 413
Pushbutton Calling P-4
P-4 Pushbutton Calling
General Description
This feature permits users to originate calls using pushbutton telephones and also allows Dterm stations the ability to
control external devices requiring DTMF signals to initiate or perform functions (Code-A-Phone, Conference Unit,
etc.).
Operating Procedure
1. The users press push-buttons corresponding to the desired numbers.
OR
2. After a connection is established between a D
term station and a station or trunk port with an external device
attached, the Dterm user may press the key pad or SPEED CALLING BUTTONS - ONE TOUCH - Dterm
[S-32D] key to transmit DTMF signals to control the external device.
Service Conditions
1. If DTMF lines from the Central Office are not available, then the PUSHBUTTON-TO-ROTARY
CONVERSION [P-6] feature must be provided.
2. Rotary and pushbutton instruments may be used simultaneously with PUSHBUTTON CALLING.
3. Timing for the DTMF signals can be set from 0.128 to 2.048 seconds via system commands on a system-
wide basis.
4. DTMF frequency combinations are as follows:
Interactions
1. Each 8RST circuit card contains eight register and eight sender circuits. Each register circuit can accept
either pushbutton or rotary dial pulses. The senders can transmit pushbutton or dial pulse signals and are
also used with the ATTENDANT CONSOLE [A-3], LEAST-COST ROUTING-3/6 DIGIT [L-5], SPEED
CALLING-SYSTEM, STATION, GROUP [S-3, 21, 23], OUTGOING TRUNK QUEUING [O-2], OFF-
HOOK QUEUING [O-7], and PUSHBUTTON-TO-ROTARY CONVERSION [P-6].
2. Register circuits are located on the first four levels (0-3) and sender circuits are located on the last four
levels (4-7) of the 8RST circuit card.
Low - High 1,209Hz 1,336Hz 1,477Hz
697Hz 1 2 3
770Hz 4 5 6
852Hz 7 8 9
941Hz * 0 # 
						

							NEAX2400 IMX Business Features and Specifications
Page 414NDA-24221, Issue 3
P-5 Pushbutton Calling - Attendant Only
P-5 Pushbutton Calling - Attendant Only
General Description
This feature permits an Attendant to place all calls over DTMF signaling lines from a pushbutton keypad on the
ATTENDANT CONSOLE [A-3].
Operating Procedure
Attendant presses the pushbutton keypad to dial.
Service Conditions
1. This feature requires that all Central Office trunks and TIE Trunk terminals accept pushbutton signaling
(DTMF).
2. PUSHBUTTON CALLING - ATTENDANT ONLY may be added to the system without providing
PUSHBUTTON CALLING [P-4] capability to other stations.
Interactions
The Attendant Console must first be provided. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 415
Pushbutton to Rotary Conversion P-6
P-6  Pushbutton to Rotary Conversion
General Description
This feature allows DTMF telephones to be used when DTMF signaling is not provided or are not available from
the Central Office and/or TIE Line.
Operating Procedure
Users dial the desired telephone numbers.
Service Conditions
1. PUSHBUTTON TO ROTARY CONVERSION is software controlled on a per-trunk route basis.
2. See UNIVERSAL SENDER [U-3] for reference. 
3. When the following combination of data settings are assigned, the PB station cannot originate a call:
ASDT - TEC = 3 (DP/PB) station data for the calling station
ASPA - SSC = OGC/OGCA
ARTD - CDN1: OSGS = 2 (second dial tone)
CDN2: ONSG = 2 (PB, 60 msec. Interruption or CCIS No. 7)
Interactions
1. Each 8RST circuit card contains four register and four sender circuits. Each register circuit can accept
either push-button or rotary dial pulses. The senders can outpulse push-button or dial pulse signals and are
used with the ATTENDANT CONSOLE [A-3], LEAST-COST ROUTING-3/6 DIGIT [L-5], SPEED
CALLING-SYSTEM, STATION, GROUP [S-3, 21, 23], OUTGOING TRUNK QUEUING [O-2], OFF-
HOOK QUEUING [O-7], and PUSHBUTTON-TO-ROTARY CONVERSION. 
2. Register circuits are located on the first four levels (0-3), and sender circuits are located on the last four
levels (4-7) of the 8RST circuit card.
3. Each register may be assigned as either an outgoing or an incoming register. Incoming calls have priority
over outgoing calls. Thus, a register programmed as outgoing may serve as an incoming register when
none are available. However, an incoming register will never serve as an outgoing register. 
						

							NEAX2400 IMX Business Features and Specifications
Page 416NDA-24221, Issue 3
P-7 Peg Count
P-7 Peg Count
General Description
This service feature permits traffic studies and traffic analysis information to be accessed from the
MAINTENANCE ADMINISTRATION TERMINAL (MAT) [M-18] and printed out.
Operating Procedure
Refer to the NEAX2400 IMX System Operations and Maintenance Manual.
Service Conditions
1. All information required for this feature is registered at the MAT.
2. The following information is available:
STATION PEG COUNT:
 Number of call originations attempted
 Number of station-to-station or station-to-Attendant calls attempted
 Number of station-to-trunk calls attempted
 Number of call originations abandoned
 Number of station-to-station calls terminated
 Number of trunk-to-station calls terminated
 Number of total calls terminated to station
 Number of calls unanswered within a predetermined time
 Number of calls answered
 Number of calls unanswered
 Number of calls hearing busy tone and forwarded to the ATTENDANT CONSOLE [A-3]
ATTENDANT PEG COUNT:
 Number of incoming calls per INCOMING CALL IDENTIFICATION [I-2] lamp
 Number of calls answered per INCOMING CALL IDENTIFICATION [I-2] busy
ROUTE PEG COUNT:
 Number of times trunk route seizure attempted
 Number of times all trunks busy reached
 Number of times trunk seized
 Number of calls terminated to trunk route
 Number of incoming calls that seized register
 Number of incoming calls directed to ATTENDANT CONSOLE [A-3]
 Number of incoming calls directed to station
 Number of incoming calls directed to tandem connection
 Number of incoming calls abandoned
3. The above information may be registered and cancelled as required.
4. The measurement information printout cycle can be any period of time ranging from 30 minutes to 120
minutes (in 10-minute increments), as required. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 417
Peg Count P-7
Service Conditions (cont’d)
5. Traffic measurement duration time is designated for more than one hour. If the traffic measurement
duration time is not designated, the measurement is performed indefinitely until a stop command is entered
on the MAT [M-18].
Interactions 
If the system is reset, traffic measurement requests are no longer in service.
Peg Count NEAX2400 IMX
Station Peg Count TN = 1-255
Route Peg Count RT = 1-255
ATT Peg Count - Incoming TN = 1-255
ATT Peg Count - Answer ATT = 1-16 
						

							NEAX2400 IMX Business Features and Specifications
Page 418NDA-24221, Issue 3
P-9 Priority Call
P-9 Priority Call
General Description
This feature allows the ATTENDANT CONSOLE [A-3] to answer various types of calls in the order of their
priority. A special type of call can be handled prior to a regular call, at the Attendants discretion.
Operating Procedure
1. Lift the handset and receive dial tone.
2. Dial the PRIORITY CALL number, then wait for the Attendant to answer.
Note:PRIORITY CALL will terminate on a designated key on the ATTENDANT CONSOLE [A-3].
Service Conditions
1. The PRIORITY CALL must be answered via a designated key in order to gain a priority capability. The
keys must be assigned by the MAINTENANCE ADMINISTRATION TERMINAL (MAT) [M-18].
2. A PRIORITY CALL will not be picked up first, by pressing the ANSWER key, if other calls are waiting.
3. A PRIORITY CALL cannot be initiated while in CONSULTATION HOLD - ALL CALLS [C-17] or
CALL HOLD [C-6].
4. In the night mode, a PRIORITY CALL will terminate at the predetermined station.
5. The calling station obtains this feature via CLASS OF SERVICE - INDIVIDUAL [C-15].
6. A station, instead of the ATTENDANT CONSOLE [A-3], can be the destination of a PRIORITY CALL
in the day mode.
7. If the PRIORITY CALL encounters the destination station busy, the call will wait for the station to become
idle. Ringback tone will be heard while the caller is waiting.
8. Three levels of PRIORITY CALLs can be assigned.
9. When the destination is a station, the originating stations should be assigned as a member of a PRIORITY
CALL group. The maximum number of PRIORITY CALL groups is 7 per TENANT [T-12]. The
terminating station must be assigned to each PRIORITY CALL group.
10. The terminating station of each group can be a member of a HUNTING GROUP [S-7, 8, 9].
11. The terminating station can set CALL FORWARDING - ALL CALLS [C-5] and CALL FORWARDING
- BUSY LINE [C-2].
12. The terminating station for ATTENDANT NIGHT TRANSFER [A-19] and/or OFF-HOOK ALARM [O-
6] can be assigned as the terminating station of a PRIORITY CALL.
13. If the destination D
term is busy (and not the pilot number of a UCD group), when a Priority Call is placed,
ringback tone is returned to the calling party rather than busy tone, and the calling party is placed in queue.
14. When a UCD [U-1] station is assigned as the destination of PRIORITY CALL, queuing function of UCD
is not available when all the stations within the UCD group are busy.
15. The Fusion Point Code (FPC) of the node which accommodates the called Attendant Console must be
assigned after System Data assignment.
Interactions
1. If the destination Dterm is busy when a Priority Call is placed, ringback tone is returned to the calling party
rather than a busy tone, and the calling party is placed in queue.
2. A Warning Tone is not provided at the called D
term while a Priority Call is in progress. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 419
Priority Call P-9
Interactions (cont’d)
3. If the destination of a Priority Call is the Attendant Console, the Priority Call does not transfer to the
ATTENDANT NIGHT TRANSFER [A-19] station when the system goes into Night mode.
4. A PRIORITY CALL will not be forwarded to outside. 
						

							NEAX2400 IMX Business Features and Specifications
Page 420NDA-24221, Issue 3
P-10 Paging Transfer
P-10 Paging Transfer
General Description
This feature allows a user to transfer a paged call to a party that has been placed on hold.
Operating Procedure
While a user is engaged in a call:
1. Switch hook flash or press TRANSFER key (on Dterm phone); receive special dial tone.
2. Dial the Paging Access Code; receive continuous ringback tone for approximately one second.
3. Page the desired party.
There are three paging options:
1. NON-DELAY SYSTEM: The party paged is immediately connected to the paging station when the paged
party dials the Paging Answer Access Code.
2. DELAY SYSTEM: The paging user replaces the handset after the page; the paged party dials the Paging
Answer access code. The paging station rings, and the paged station receives ringback tone. After the
paging user lifts the handset, the paging and paged stations are connected.
3. PAGING TRANSFER SUPERVISION: The paging user replaces the handset after the page. By dialing
the Paging Answer access code, the paged party is directly connected to the party on hold.
For Non-Delay and Delay systems:
1. When a paging station replaces the handset after talking with the paged party, the held party is directly
connected to the paged party.
Service Conditions
1. PAGING TRANSFER service can be selected according to System Data assignment:
a.) Non-Delay system
b.) Delay and Non-Delay system
c.) PAGING TRANSFER Supervision
2. Paging trunks can be provided for a maximum of six routes.
3. When a paging route has been accessed and is not answered within a predetermined time, the paging
activation is automatically cleared.
4. Both the COT card and the TLT card can be used as the paging trunk.
5. Loop signaling is the recommended signaling type.
6. When the Attendant Console activates the service, the conditions are as follows:
a.) An Attendant Console user can connect the paged party with the calling party the same way as
PAGING TRANSFER SUPERVISION only (see Operating Procedure).
b.) If the paged party answers the page before the Attendant Console releases the loop, the Attendant
Console is called from the paged party as an operator call. In this case, the Attendant Console can
connect the paged party with the held party (calling party) in the procedure below:
 Press the CANCEL key to release the loop to be used for the page.
 Answer the operator call and press the HOLD key to hold the loop.
 Press the loop key holding the calling party to be back to the original connection and perform
the normal operation for Attendant Console Loop-to-Loop Connection (see MEET-ME
PAGING [M-1] for details) to connect the two parties.
7. When using this feature via the FCCS network, PAGING ACCESS [P-1], PAGING TRANSFER [P-10]
and RADIO PAGING [R-16] are provided to the paging station and the paged station in FCCS nodes.