NEC Neax 2400 Ipx Isdn Features And Specifications

							NEAX2400 IPX ISDN Features and Specifications
Page 96NDA-24311, Issue 1
N-29 Night Connection Outside - System - PRI
N-29 Night Connection Outside - System - PRI
General Description
This is a night transfer service on a system basis enabling a ring down call to be transferred to a preselected station,
outside the NEAX2400 IPX via ISDN network, when Night mode has been set.
Operating Procedure
1. The Attendant sets Night mode.
(Night key, PB, Jack Extraction, MB)
2. Ring down call terminates from a trunk.
3. The call is transferred to another station in accordance with NIGHT CONNECTION OUTSIDE -
SYSTEM data.
Service Conditions
1. The priority of this service is higher than TRUNK ANSWER FROM ANY STATION (TAS) [T-8]
service, but lower than DIRECT-IN TERMINATION (DIT) [T-7] and NIGHT CONNECTION - FIXED
[N-1] services. Therefore, if DIT [D-7] and NIGHT CONNECTION - FIXED [N-1] are set, this service
is not activated.
2. If the terminating side is a ring down trunk, a release signal cannot be sent out after communication is
established; so the trunk to which the call is transferred must be capable of sending back a release signal.
3. This service cannot be used in combination with CONSECUTIVE SPEED CALLING - SYSTEM [C-62]
and SPEED CALLING - OVERRIDE - SYSTEM [S-61] service.
4. The call transfer destination can be fixed on a tenant basis.
5. Whether to activate this service or not can be determined in system data on a tenant basis.
6. The call transfer destination is assigned using Speed Calling numbers.
7. Speed Calling numbers assigned as the transfer destination can be used for SPEED CALLING - SYSTEM
[S-3] feature.
8. When night transfer occurs, incoming/outgoing routes will be restricted. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 97
Nailed-Down Connection - PRI N-31
N-31  Nailed-Down Connection - PRI
General Description
This service feature provides the logical equivalence of a hardware connection between ISDN trunk and a station/
trunk. A NAILED DOWN CONNECTION is constantly maintained in the system’s software. NAILED DOWN
CONNECTION data is programmed via the Maintenance Administration Terminal (MAT).
Operating Procedure
No manual operation is required.
Service Conditions
1. The following connections are supported by this service:
ISDN trunk ISDN trunk
ISDN trunk CCIS trunk
ISDN trunk Non-ISDN trunk
2. When a call terminates to B channel of an ISDN trunk engaged in NAILED DOWN CONNECTION, that
B channel is treated as busy.
3. When establishing NAILED DOWN CONNECTION, the target station/ trunk needs to be idle.
4. When NAILED DOWN CONNECTION is assigned to a station/trunk already engaged in a call, NAILED
DOWN CONNECTION is established after the call in progress is forcibly disconnected. In this case,
RESTART message is sent to the called office.
5. If the system/package is reinitialized while NAILED DOWN CONNECTION is established, NAILED
DOWN CONNECTION is reestablished after system/package reinitialization.
6. NAILED DOWN CONNECTION cannot be established for the following types of hardware:
Attendant Console
Register/sender trunk
Conference trunk for THREE-WAY CALLING [T-2]
AMP pool trunk
7. The following services supersede NAILED DOWN CONNECTION - PRI service. Therefore, the stations
engaged in NAILED DOWN CONNECTION should be restricted from these services.
CALL FORWARDING - ALL CALLS  [C-5]
PRIVACY RELEASE  [P-18]
STATION HUNTING - CIRCULAR  [S-7]
STATION HUNTING - SECRETARIAL  [S-8]
STATION HUNTING - TERMINAL  [S-9]
Services to be activated when the station is busy 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 98NDA-24311, Issue 1
O-24 Outgoing Trunk Queuing - PRI
O-24 Outgoing Trunk Queuing - PRI
General Description
This feature allows a user, upon encountering an ISDN trunk busy signal, to dial a specified access code and enter
a first-in, first-out queue. As soon as an ISDN outgoing trunk becomes available, stations in the queue are called
back on a first-come, first-served basis.
Operating Procedure
1. Dial the ISDN trunk access code; receive busy tone.
2. Press the switchhook; receive special dial tone.
3. Dial the OUTGOING TRUNK QUEUING access code and receive service set tone.
4. Replace the handset.
When an ISDN trunk becomes available, a station in the queue is called back.
To cancel
1. Lift the handset; receive dial tone.
2. Dial the OUTGOING TRUNK QUEUING cancel code; receive service set tone.
Service Conditions
1. Once an OUTGOING TRUNK becomes available, the user’s station rings for up to 30 seconds. If not
answered within that time, the station automatically drops from the queue.
2. When this feature is used in conjunction with SPEED CALLING - SYSTEM [S-3], or LEAST COST
ROUTING - 3/6-DIGIT [L-5] where a sender is involved, the sender automatically dials out the called
subscriber number when the handset is lifted.
3. If the user wishes to remove himself from the queue prior to being rung, the specified cancellation code
must be dialed.
4. Individual stations can initiate only one outgoing trunk queue at a time. Subsequent attempts result in a
reorder tone.
5. Stations may be restricted from using this feature in CLASS OF SERVICE - INDIVIDUAL [C-15].
6. This feature is not available for an ATTENDANT CONSOLE [A-3].
7. The maximum number of simultaneous OUTGOING TRUNK QUEUES per system is 256.
8. CALL PICKUP - GROUP [C-7] cannot be used to answer a call directed to another station using the
OUTGOING TRUNK QUEUING feature.
9. OUTGOING TRUNK QUEUING is common to all Central Office type groups (DDD, etc.) in the system.
10. OUTGOING TRUNK QUEUING call back returns to the originating station, not the CALL
FORWARDING - BUSY LINE [C-2], CALL FORWARDING - DON’T ANSWER [C-3], CALL
FORWARDING - ALL CALLS [C-5] terminating station. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 99
Outgoing Trunk Queuing - PRI O-24
Service Conditions (cont’d)
11. OUTGOING TRUNK QUEUING is denied to a station line when the CALL BACK [C-1] or CALL
HOLD [C-6] feature is already activated.
12. CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT [A-1] cannot be used for a
call to a station that has activated OUTGOING TRUNK QUEUING.
13. If a user goes on-hook within 6 to 8 seconds after encountering all trunks busy, OUTGOING TRUNK
QUEUING can be set automatically to the station.
14. The station is set for OUTGOING TRUNK QUEUING for a maximum of 30 seconds to 1 hour. This time
is adjustable through the system database. After this time elapses, OUTGOING TRUNK QUEUING is
cancelled automatically.
15. ACCOUNT CODE [A-18] and FORCED ACCOUNT CODE [F-7] information can be recorded on
STATION MESSAGE DETAIL RECORDING (SMDR) [S-10] when used in conjunction with
OUTGOING TRUNK QUEUING.
Interactions
The stations setting the OUTGOING TRUNK QUEUING - PRI cannot activate the following services.
CALL BACK  [C-1]
CALL WAITING - ORIGINATING  [C-31]
CALL WAITING - TERMINATING  [C-12]
CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT [C-75] 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 100NDA-24311, Issue 1
O-26 Outgoing Trunk Queuing - Deluxe - PRI
O-26 Outgoing Trunk Queuing - Deluxe - PRI
General Description
This feature allows users, according to their Service Feature Class (SFC), to queue for an outgoing ISDN trunk when
all call routes are busy. This feature allows specific routes to be queued at a timed interval, depending on the user’s
SFC. If on-hook queuing is used, the NEAX2400 IPX sends a ringback tone to the station when a trunk becomes
available. On- or off-hook queuing can be assigned to stations within a tandem network, as well as stations at main
and satellite PBXs.
The NEAX2400 IPX provides an off-hook queuing capability to Attendants and an optional priority queuing feature.
Operating Procedure
On-hook Queuing
1. Dial the ISDN trunk access code; receive busy tone.
2. Press the switchhook, receive special dial tone.
3. Dial the OUTGOING TRUNK QUEUING access code; receive service set tone.
4. To cancel, lift the handset and dial the OUTGOING TRUNK QUEUING cancel code; receive service set
tone, and replace the handset.
Note:If the calling party does not answer the ringback within thirty seconds, the call will be removed from queue.
Off-hook Queuing
1. Dial the ISDN trunk access code; receive service set tone when no outgoing ISDN trunks are available.
The service set tone indicates that the calling station has been placed in an off- hook queue.
2. To cancel off-hook queuing, replace the handset (on-hook).
Service Conditions
1. Service Feature Index (SFI) 63 must be assigned to operate this feature.
2. If a station is placed in a timed outgoing queue after the system timer is exceeded, any available route in
the routing pattern (OPR) assigned can be accessed.
3. Selection of the timed routes to be queued is assigned in the AOPR command and is determined by the
OVFT parameter (OF Timed Queue, 1=immediate access).
4. Either on-hook or automatic queue can be used in conjunction with this feature. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 101
Outgoing Trunk Queuing - Deluxe - PRI O-26
Service Conditions (cont’d)
5. Only one type of queuing can be designated for a local station, OPX station, Attendant Console, remote
access station, or tie trunk. Queuing can be flexibly assigned throughout a network, as shown in the
following table:
OHQ: Off-Hook Queuing
RBQ: Ringback Queuing
OHQ/P: Off-Hook Queuing with Priority
Note:RBQ is not provided for a tie trunk.
6. There are a maximum of thirty-two slots available per local processor for either on- or off-hook queuing.
7. The connecting patterns supported by this service are as follows:
Interactions
The stations setting the OUTGOING TRUNK QUEUING - DELUXE - PRI cannot activate the following services.
CALL BACK  [C-1]
CALL WAITING - TERMINATING  [C-12]
CALL WAITING - ORIGINATING  [C-31]
CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT [C-75]
From
TypeLocal Station OPX StationAttendant
ConsoleRemote Access
TrunkTie Trunk
1 OHQ OHQ OHQ OHQ OHQ
2 RBQ RBQ OHQ/P OHQ/P --- (Note)
3 OHQ OHQ OHQ/P OHQ/P OHQ/P
4 RBQ OHQ/P OHQ/P OHQ/P OHQ/P
5 RBQ --- --- --- ---
Outgoing 
Trunk
Calling PartyGeneral Trunk CCIS Trunk ISDN Trunk
StationAvailable in current 
serviceAvailable in current 
serviceAvailable in ISDN 
service
Attendant Console Not available - -
Data Adapter/Data Module Not available Not available Not available 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 102NDA-24311, Issue 1
O-28 Off-Hook Queuing - PRI
O-28  Off-Hook Queuing - PRI
General Description
This service allows a user encountering busy ISDN trunk to remain off-hook and automatically enter a first-in, first-
out queue. As soon as an outgoing ISDN trunk becomes available, the switch connects the next call to this trunk.
Operating Procedure
1. Dial the OFF-HOOK QUEUING access code plus the number for ISDN trunks. When no trunks are
available, the caller automatically enters an available queue. 
2. The caller receives service set tone.
3. When a trunk becomes available, the dialed number is automatically sent forward.
4. If the caller goes on-hook while in queue, the assigned queue slot is cleared.
Service Conditions
1. This feature is usually used in conjunction with LEAST COST ROUTING - 3/6-DIGIT - PRI [L-31].
2. Maximum 256 stations per system can use OFF-HOOK QUEUING simultaneously.
3. The queue slots are shared by OFF-HOOK QUEUING [O-7], OUTGOING TRUNK QUEUING [O-2],
PRI [O-24], INTER-OFFICE OFF-HOOK QUEUING [I-11], and - PRI [I-36].
4. If no queue slots are available, the user receives trunk busy signal.
5. Route class of the LCR can give the choice of the OFF-HOOK QUEUING.
6. CLASS OF SERVICE - INDIVIDUAL [C-15] is applied for each station. This class of service is different
from the CLASS OF SERVICE for OUTGOING TRUNK QUEUING - PRI [O-24]. Both services are
mutually exclusive.
7. When automatic OUTGOING TRUNK QUEUING [O-2] is in service (system basis), OFF-HOOK
QUEUING service is not effective.
8. ACCOUNT CODE [A-18] and FORCED ACCOUNT CODE [F-7] information can be recorded on
STATION MESSAGE DETAIL RECORDING (SMDR) [S-10], when used in conjunction with OFF-
HOOK QUEUING - PRI.
9. The following connection patterns are available for this feature:
Station
to an ISDN trunk Attendant
Attendant connecting a station
Attendant connecting a trunk 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 103
Outgoing Trunk Queuing - Attendant - PRI O-30
O-30  Outgoing Trunk Queuing - Attendant - PRI
General Description
This feature allows an ATTENDANT CONSOLE [A-3] encountering a busy ISDN trunk to remain off-hook and
automatically enter a first-in, first-out queue. As soon as an outgoing ISDN trunk becomes available, the switch
connects the next call to that trunk.
Operating Procedure
To operate
1. Dial the access code and the desired ISDN trunk number. When no trunks are available, the call
automatically enters an available queue slot. 
2. The Attendant receives service set tone.
3. When a trunk becomes available, the dialed number is automatically sent forward.
4. If Attendant goes on-hook while in queue, the assigned queue slot is cleared.
Service Conditions
1. This feature is used with LEAST COST ROUTING - 3/6-DIGIT - PRI [L-31].
2. Maximum 256 of stations or ATTENDANT CONSOLES [A-3] can use OFF-HOOK QUEUING [O-7]
simultaneously per system.
3. The queue slots are shared by OFF-HOOK QUEUING [O-7], - PRI [O-28], OUTGOING TRUNK
QUEUING [O-2], - PRI [O-24], INTER- OFFICE OFF-HOOK QUEUING [I-11] and - PRI [I-36].
4. If no queue slots are available, the ATTENDANT CONSOLE [A-3] receives busy tone.
5. CLASS OF SERVICE - INDIVIDUAL [C-15] is applied to each ATTENDANT CONSOLE [A-3].
6. OFF-HOOK QUEUING [O-7] is used for this service feature.
7. The following connection patterns are available for this feature:
Station
to an ISDN trunk Attendant
Attendant connecting a station
Attendant connecting a trunk 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 104NDA-24311, Issue 1
O-32 Overflow - UCD - PRI
O-32 Overflow - UCD - PRI
General Description
1. When a call from an ISDN trunk has terminated to UNIFORM CALL DISTRIBUTION (UCD) [U-1]
Group A and an incoming call has encountered all stations busy in Group A, the call is transferred to UCD
[U-1] Group B, if Group B is registered as the overflow destination.
Overflow UCD—Call Transferred to Group B
2. In case all of the stations are busy in Group B, to which the call has been transferred by the OVERFLOW-
UCD service, the call is registered in the queue in UCD [U-1] Group A.
Overflow UCD—Call Registered in Queue in Group A
Call Termination
Overflow UCD
Group A
All Busy
UCD
Group B
Call Termination
OverflowUCD
Group A
All Busy
UCD
Group B
All Busy
Call registered in Group A 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 105
Overflow - UCD - PRI O-32
Operating Procedure
No manual operation is required.
Service Conditions
1. An overflow group must be a UCD [U-1] group.
2. One overflow group can be provided for one UCD [U-1] group.
3. Overflow is performed only once.
4. An overflow group cannot be registered into a queue.
5. A NEAX2400 IPX system can be provided with one overflow group.