NEC Neax 2400 Ipx Isdn Features And Specifications

							NEAX2400 IPX ISDN Features and Specifications
Page 86NDA-24311, Issue 1
M-73 Music On Hold - PRI
M-73  Music On Hold - PRI
General Description
This feature allows a party to hear music while in the CALL HOLD [C-6], CALL TRANSFER - ATTENDANT [C-
10], CALL TRANSFER - ALL CALLS [C-11], or ATTENDANT CAMP-ON [A-1] conditions.
Operating Procedure
No manual operation is required since this is a software controlled feature.
Service Conditions
1. The system is capable of supplying two switch-selectable music channels. Music is generated by three
synthesizers included in the package.
2. If another music source (tuner, tape-deck, etc.) is desired, it must be customer provided.
3. The held-call condition can be the result of:
CALL HOLD  [C-6]
CONSULTATION HOLD - ALL CALLS  [C-17]
CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT  [C-75]
SPLITTING [S-4]
Attendant Hold
4. Only one music source, either customer-provided or internal, can be provided per system (system option).
5. ATTENDANT CONSOLE [A-3]: Attendant operations resulting in music provided to the calling party
includes the following:
a.) If the Attendant splits a call prior to completion or after answering an Attendant recall, the calling
party or the remaining party (not talking with the Attendant) receives music.
b.) When incoming calls to the Attendant are answered and the Attendant presses the HOLD key, the
held party receives music.
c.) When the Attendant intercepts a call to a busy station, the calling party is connected to music
until the called party answers or the Attendant reenters the switched loop.
6. When a user in a two-party, voice-connection switchhook flashes, the second party is placed on hold and
is connected to music. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 87
Modem Pooling - PRI M-74
M-74 Modem Pooling - PRI
General Description
The MODEM POOLING - PRI feature allows any asynchronous or synchronous data station (DTE) connected to a
Dterm Data Adapter or Data Module to have access to off-premise devices (other terminals, mainframes, personal
computers, etc.) using Modem Pools. Also, off-premise devices can gain access to the Data Modules or Data
Adapters through incoming Modem Pools. Modem Pools provide the capability to share modems among users for
outgoing and incoming communications. DATA CALL LEAST COST ROUTING - 3/6-DIGIT [D-49] and other
standard PBX features can be used for long distance data calls.
Operating Procedure
Outgoing Modem Pooling
To initiate a data call to an outside DTE via analog trunk lines from a Data Module or keyboard dialing Data
Adapter
1. Key in DM CALL  from the keyboard of the connected DTE. The DTE’s display will show DM
CALL, then READY.
2. Key in the desired DTE extension: DIAL-XXXX . CALLING and WAITING will be
displayed. These messages indicate that the Modem Pool is being connected.
3. After the called modem answers and exchanges carrier signals with the pooled modem, the DTE displays
OPEN.
4. Data communication can begin.
To release from data communication using a Data Adapter or Data Module with keyboard dialing
1. Key in -DM  from the keyboard of the attached DTE.
2. The display will show ACK; key in RLS  to release.
3. The display will show RELEASED, indicating that data communication has been released.
To initiate a data call to an outside DTE via analog trunk lines from a Dterm/Data Adapter (keypad dialing)
1. Lift the Dterm’s handset; receive dial tone.
2. Dial the analog telephone number (this is a voice call).
3. When the call is answered and the called modem is switched to the data mode, receive an answer tone
(modem tone).
4. Press the D
term’s DTX key; the LED above the key illuminates steadily. The DATA lamp will flash and
appears on the Dterm’s LCD. (XXXX refers to the called DTE number, and will be flashing.) This display
indicates that the Modem Pool is being connected.
(Time Display) WAIT   D XXXX 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 88NDA-24311, Issue 1
M-74 Modem Pooling - PRI
Operating Procedure (cont’d)
5. After the called modem and the pooled modem exchange carrier signals, the display shows:
6. Data communication can begin.
To release from data communication using a Dterm/Data Adapter (keypad dialing)
1. Press the DATA key to disconnect.
2. The display shows RELEASE D XXXX, indicating that data communication has been released.
Incoming Modem Pooling
To receive a data call from an outside DTE via analog trunk lines at a Dterm/Data Adapter
1. The caller dials the data number of the Dterm station.
2. If the D
term/DTE is set for Auto Answer, a modem of the proper speed will be automatically connected to
the call.
3. If the called DTE is set for Auto Answer, modem confirmation tone is heard. If the called DTE is set for
Manual Answer, the call must be answered manually at the remote end. The called user can press the
DATA key on the D
term/Data Adapter. A Modem will be connected to the call.
4. When the Modem is connected, the DATA lamp illuminates steadily. On a D
term, the LCD displays
READY D XXXX (XXXX refers to the trunk type).
To release from data communication using a Dterm/Data Adapter (keypad dialing)
1. Calling party goes on-hook.
2. Called party presses the DATA key to disconnect.
3. The display shows RELEASE D XXXX, indicating that data communication has been released.
To receive a data call from an outside DTE via analog trunk lines with a Data Module or a keyboard dialing
Data Adapter
1. The remote caller dials the data DTE number via analog trunk lines.
2. A modem is automatically selected and the Data Adapter or Data Module transmits the INCOM message
to the local DTE. The caller hears ringback tone.
3. If the called DTE is set for Auto Answer, modem confirmation tone is heard. If the called DTE is set for
Manual Answer, the call must be answered manually at the remote end. The called user may key in a
READY  response from the keyboard of the DTE connected to the Data Module. Auto Answer
is set via a switch on the Data Module.
4. A WAITING display indicates that the Modem Pool is being connected. An OPEN message will be
indicated at the local DTE when the remote DTE’s READY response arrives. OPEN indicates that both
parties can communicate with each other via modem.
To release from data communication using a Data Adapter or Data Module with keyboard dialing
1. Key in -DM  from the keyboard of the attached DTE.
2. The display shows ACK; key in RLS  to release.
3. The display shows RELEASED, indicating that data communication has been released.
(Time Display) READY   D XXXX 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 89
Modem Pooling - PRI M-74
Service Conditions
1. Up to eight Modem Pool Groups can be assigned: eight bothway, four incoming, four outgoing, or any
combination thereof.
2. One modem in the group is selected by the DTE at the time of connection.
3. LEAST CALL ROUTING - 3/6-DIGIT [L-6] can be used for optimization of long distance data calls.
4. Incoming MODEM POOLING capabilities are also provided via DIT, DID, or the Attendant.
5. Modems must be compatible.
6. NEC modems tested and certified to work with the MODEM POOLING - PRI feature are:
NEC 212 AE    300/1200 bps
NEC DSP2420  300/1200 bps
NEC DATAX     SP2424 AA
Note:Consult NEC for other types of modems.
7. Modems can be selected by the user. 
8. MODEM POOLING - PRI is also used for digital-to-analog/analog- to-digital translation. Refer to
INTRA MODEM POOLING [I-15].
9. Acoustically Coupled Modems, Limited Distance Modems, Line Drivers, and DSUs cannot be attached
to the Modem Pooling card.
10. Consideration should be given to the modems’ capability to recognize a distinctive ringing pattern when
defining incoming trunk ringing.
11. Speed Select via pin 24 on the EIA RS-232C connector is not implemented.
12. Auto Dial or Intelligent Modems must be strapped for manual operation to work on the Modem Pooling
card. 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 90NDA-24311, Issue 1
M-75 Multiple Call Forwarding - All Calls - PRI
M-75  Multiple Call Forwarding - All Calls - PRI
General Description
This feature permits a call from the ISDN network to a station set to CALL FORWARDING - ALL CALLS - PRI
[C-95] to be forwarded multiple times to a predesignated idle station.
Operating Procedure
To set CALL FORWARDING - ALL CALLS - PRI [C-95] from an individual station
1. Lift the handset; receive dial tone.
2. Dial the specific CALL FORWARDING - ALL CALLS access code; receive special dial tone.
3. Dial the desired target telephone number; receive service set tone.
To cancel CALL FORWARDING - ALL CALLS - PRI [C-95] from an individual station
1. Lift the handset; receive dial tone.
2. Dial the specific CALL FORWARDING - ALL CALLS cancel code; receive service set tone.
To set CALL FORWARDING - ALL CALLS - PRI [C-95] from the ATTENDANT CONSOLE [A-3]
1. Press an idle loop key.
2. Dial the specific CALL FORWARDING - ALL CALLS access code; receive special dial tone.
3. Dial the TENANT [T-12] number (two or three digits).
4. Dial the originating telephone number.
5. Dial the desired target telephone number; receive service set tone.
To cancel CALL FORWARDING - ALL CALLS - PRI [C-95] from the ATTENDANT CONSOLE [A-3]
1. Press an idle loop key.
2. Dial the specific CALL FORWARDING - ALL CALLS cancel code; receive special dial tone.
3. Dial the TENANT SERVICE [T-12] number, (two or three digits).
4. Dial the originating telephone number; receive service set tone.
Service Conditions
1. MULTIPLE CALL FORWARDING - ALL CALLS - PRI service can forward a maximum of five times
when the called station sets CALL FORWARDING - ALL CALLS [C-5] to a station that has set CALL
FORWARDING - ALL CALLS [C-5] or CALL FORWARDING - BUSY LINE [C-2].
2. MULTIPLE CALL FORWARDING - ALL CALLS service can only be performed by the voice port of a
D
term, or a single line telephone.
3. If a calling party has been set to CALL FORWARDING - ALL CALLS [C-5] five times and encounters
the sixth CALL FORWARDING - ALL CALLS [C-5], the calling party will not be forwarded; but will
receive busy tone when the destination station is busy, or ringback tone if the destination station is idle.
4. If the destination of CALL FORWARDING - ALL CALLS [C-5] is set to CALL FORWARDING -
BUSY LINE [C-2], forwarding occurs.
5. When combining CALL FORWARDING - ALL CALLS [C-5] and CALL FORWARDING - BUSY
LINE [C-2], the calling party hears busy tone, if the fifth destination station is busy.
6. If the destination in a MULTIPLE CALL FORWARDING - ALL CALLS is busy, and CALL
FORWARDING - BUSY LINE [C-2] or CALL FORWARDING - ALL CALLS [C-5] has not been set,
the calling party receives busy tone. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 91
Multiple Call Forwarding - All Calls - PRI M-75
Service Conditions (cont’d)
7. If the destination station is busy, the calling station may activate CALL BACK [C-1], CALL WAITING
- ORIGINATING [C-31], or EXECUTIVE RIGHT-OF-WAY [E-1] to the destination station.
8. When MULTIPLE CALL FORWARDING - ALL CALLS occurs, the display of the calling party’s D
term
shows the called telephone number and terminating telephone number. The display of the terminating
party’s Dterm shows the calling party (station or trunk) and the called number.
9. If the destination station in a combined MULTIPLE CALL FORWARDING - ALL CALLS and CALL
FORWARDING - BUSY LINE [C-2] is set to CALL FORWARDING - DON’T ANSWER [C-3], then
MULTIPLE CALL FORWARDING - DON’T ANSWER [M-25] is put into effect. If the destination
station from the CALL FORWARDING - DON’T ANSWER [C-3] is set to CALL FORWARDING -
BUSY LINE [C-2] or CALL FORWARDING - ALL CALLS [C-5], forwarding is restricted.
10. If two stations have CALL FORWARDING - ALL CALLS [C-5] set to each other, an incoming call to
either of these stations will not be forwarded; therefore, an infinite loop will not occur.
11. If the incoming call returns to a station that has already taken part in the multiple jump service (Busy or
All Calls), then CALL FORWARDING - ALL CALLS [C-5] service from that station will not be
performed, and the system will ignore that stations forwarding service.
12. If an incoming call encounters MULTIPLE CALL FORWARDING - ALL CALLS and the destination is
the ATTENDANT CONSOLE [A-3], the incoming call appears on the ATND key.
13. If the destination station of MULTIPLE CALL FORWARDING - ALL CALLS - PRI is in a hunt group
and is set to CALL FORWARDING - BUSY LINE [C-2] to a station in another hunt group, it can be
determined, through system data, whether the calling party hunts to the called partys hunt group or the
terminating party’s hunt group when forwarded-to stations are busy.
14. If the destination of MULTIPLE CALL FORWARDING - ALL CALLS - PRI is the pilot of a UNIFORM
CALL DISTRIBUTION (UCD) [U-1] group, UCD [U-1] is executed.
15. If a member of a UCD [U-1] group is a member of a MULTIPLE CALL FORWARDING - ALL CALLS-
PRI sequence, that station is skipped in UCD [U-1] hunting.
16. When users dial their own telephone numbers as the target telephone number after dialing CALL
FORWARDING - ALL CALLS access code, CALLING PARTY RECOGNITION SERVICES
(DIRECT-IN TERMINATION (DIT)) [C-104] is activated. 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 92NDA-24311, Issue 1
N-20 Night Connection - Fixed - PRI
N-20  Night Connection - Fixed - PRI
General Description
This feature routes ISDN calls normally directed to the ATTENDANT CONSOLE [A-3] to a preselected common
station within the system when the Night mode has been entered.
Operating Procedure
To answer NIGHT CONNECTION - FIXED - PRI calls
1. Incoming calls to the ATTENDANT CONSOLE [A-3] in the Night mode are automatically transferred to
a preselected NIGHT CONNECTION - FIXED station.
2. Calling party hears ringback tone.
3. Ring signal is sent to the Night station.
4. Night station goes off-hook to answer an incoming call. If necessary, this station can transfer the incoming
call to another station within the system using CALL TRANSFER - ALL CALLS [C-11] feature.
Service Conditions
1. Calls being processed or in the hold state, when the Night mode is entered, continue to be processed or
held after the mode changeover has been completed.
2. If the Night station to which an incoming call has been directed is busy, the calling party hears ringback
tone until the station becomes idle.
3. This service feature can be provided with NIGHT CONNECTION - FLEXIBLE - PRI [N-21] and
TRUNK ANSWER FROM ANY STATION (TAS) [T-8] in the same system.
4. If the Night station is set for CALL FORWARDING - ALL CALLS [C-5], incoming ISDN network calls
terminated to that station are forwarded to the designated station.
5. Programmed Night stations can use CALL HOLD [C-6], CALL TRANSFER - ATTENDANT [C-10],
CALL TRANSFER - ALL CALLS [C-11] and THREE-WAY CALLING [T-2], provided these features
are programmed into its CLASS OF SERVICE - INDIVIDUAL [C-15].
6. The Night station is assigned to each trunk, and the same NIGHT CONNECTION - FIXED - PRI can be
assigned to several trunks.
7. When the NIGHT CONNECTION - FLEXIBLE - PRI [N-21] feature is provided, assignments can be
made by the ATTENDANT CONSOLE [A-3] or Night station using the CALL FORWARDING - ALL
CALLS [C-5] feature.
8. CALL FORWARDING - BUSY [C-2], CALL FORWARDING - DON’T ANSWER [C-3]: A Night user
can activate the CALL FORWARDING - BUSY [C-2], CALL FORWARDING - DON’T ANSWER
[C-3] feature if available to the user. A call ringing at an idle Night station rings for 30 seconds before
forwarding. A call forwarded from a busy Night station rings normally at the designated station. A station-
to-Attendant call cannot be forwarded to a Night station. An incoming trunk call forwarded from an idle
unanswered Night station alerts the designated station with distinctive ringing (system option on ringing
type is available).
9. CALL TRANSFER - ALL CALLS [C-11]: When the Night Connection feature is active, the CALL
TRANSFER - ALL CALLS [C-11] feature is always enabled, regardless of the class of service of the
station assigned to NIGHT CONNECTION - FIXED - PRI.
10. STATION MESSAGE DETAIL RECORDING (SMDR) [S-10]: The SMDR records contain night
service calls. The SMDR call record includes the telephone number answering the call. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 93
Night Connection - Fixed - PRI N-20
Service Conditions (cont’d)
11. A fully restricted station cannot be assigned as a Night station.
12. Incoming Restricted Line: When NIGHT CONNECTION - FIXED - PRI or FLEXIBLE - PRI [N-21] is
active, the line Class of Service restrictions can be automatically changed when the system is in the Night
mode of operation. This allows a station normally restricted during the day to receive incoming calls.
13. Arrangements are provided to route calls normally directed to the Attendant, to a preselected station line
within the system when Night service is activated. In addition, incoming calls from specific non-Direct
Inward Dialing (DID) exchange network trunks can be arranged to route to specific station lines. The
routings are provided on a fixed basis via the MAINTENANCE ADMINISTRATION TERMINAL
(MAT) [M-18]. TRUNK ANSWER FROM ANY STATION (TAS) [T-8], when available, can also be
provided for night calls not assigned to Night stations. Assignments can be made per incoming trunk.
14. When CALL FORWARDING - ALL CALLS - PRI [C-95] or CALL FORWARDING - BUSY [C-2],
CALL FORWARDING - DON’T ANSWER [C-3] is provided and the station is busy, Call Forwarding is
implemented on the station line. If the station is in a STATION HUNTING - CIRCULAR [S-7],
STATION HUNTING - SECRETARIAL [S-8], or STATION HUNTING - TERMINAL [S-9], Call
Forwarding takes place prior to the Station Hunting feature or UCD [U-1].
15. When the system is in the Night mode of operation, incoming calls are directed in the following order:
a.) NIGHT CONNECTION - FLEXIBLE - PRI [N-21]
b.) NIGHT CONNECTION - FIXED - PRI [N-20]
c.) TRUNK ANSWER FROM ANY STATION (TAS) [T-8] 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 94NDA-24311, Issue 1
N-21 Night Connection - Flexible - PRI
N-21  Night Connection - Flexible - PRI
General Description
This feature provides arrangements to route ISDN calls normally directed to the ATTENDANT CONSOLE [A-3]
to a preselected station, on a flexibly assignable basis within the system, when the Night mode has been entered.
Operating Procedure
Answering operation is the same as that for NIGHT CONNECTION - FIXED - PRI [N-20].
Each evening, before placing the ATTENDANT CONSOLE [A-3] into the Night Connection mode, the Attendant
programs CALL FORWARDING - ALL CALLS [C-5] from the NIGHT CONNECTION - FIXED [N-20] station
to the desired station.
Service Conditions
1. The NIGHT CONNECTION - FLEXIBLE station can be programmed from either the ATTENDANT
CONSOLE [A-3] or the NIGHT CONNECTION - FIXED station.
2. Arrangements are provided to route calls, normally directed to the Attendant, to a preselected station line
within the system when Night Service is activated. In addition, incoming calls from specific non-DID
exchange network trunks can be arranged to route to the specific station line. The routings can be assigned
on a flexible basis by the Attendant or Night station by use of the Call Forwarding feature. These remain
in effect until changed. For NIGHT CONNECTION - FLEXIBLE - PRI to function, a telephone number
of the night station must be assigned to the trunk via the MAINTENANCE ADMINISTRATION
TERMINAL (MAT) [M-18]. In the event of a power failure, the assignments are not lost. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 95
Non-Delay Operation - PRI N-22
N-22 Non-Delay Operation - PRI
General Description
This feature allows the ATTENDANT CONSOLE [A-3] to place any calling party on hold, dial the call, and connect
the calling and called parties.
Operating Procedure
1. The Attendant answers an operator call by pressing the ANSWER, or ATND key.
2. Press the START key.
3. Dial the exchange network access code.
4. Dial the desired telephone number.
5. Press the RELEASE key.
6. The parties are connected.
Service Conditions
1. The Attendant can drop out of the connection either before or after the called station answers.
2. There is no AUTOMATIC RECALL [A-8] for station-to-trunk and trunk-to-trunk calls when the called
party does not answer.
3. If the station is restricted, the Attendant receives reorder tone when attempting to establish a Central Office
connection.
4. When the PASSING DIAL TONE [P-2] feature is provided, once the Attendant has accessed an outgoing
trunk, the call can be released from the ATTENDANT CONSOLE [A-3] and the user is allowed to
complete dialing.
5. This feature allows the Attendant to place an outgoing call for a user who reached the Attendant via a dial
0 call, without requiring the user to hang up.