NEC Neax 2400 Ipx Isdn Features And Specifications

							NEAX2400 IPX ISDN Features and Specifications
Page 126NDA-24311, Issue 1
S-88 SMDR for Data Call - RS232C - PRI
Service Conditions (cont’d)
11. The NEAX2400 IPX can accommodate up to two active ports or two redundant ports. Additional
hardware is required.
12. Supervision on the status of the external RS232C terminal is not performed.
13. Data rate output is 300, 600, 1200, 2400, 4800, and 9600 bps asynchronous ASCII (switch selectable).
14. A maximum of 28,000 simultaneous calls can be stored in the system memory (active calls). The call
record is sent to the output device and removed from memory upon completion.
15. Calls are allowed to complete if overflow active calls occur.
16. Local (intraswitched) data calls are not tracked. DATA CALL PEG COUNT [D-50] or DATA
TERMINAL TRAFFIC MEASUREMENT [D-21] can be used for local data traffic information. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 127
Speed Calling Override - System - PRI S-89
S-89  Speed Calling Override - System - PRI
General Description
This feature allows a station with restriction on outgoing ISDN and/or certain miscellaneous trunk calls by the
station CLASS OF SERVICE - INDIVIDUAL [C-15] to place such calls by using the prefixed digits (abbreviated
call code) registered beforehand in SPEED CALLING - SYSTEM - PRI. A station can use this feature if it has been
assigned the appropriate Service Feature Class (SFC).
Operating Procedure
1. Lift the handset (includes SPEAKER key operation on Dterm); receive dial tone.
2. Dial the Speed Calling access code (three digits).
3. Dial the abbreviated call code (four digits).
4. If the station is allowed this call, the call is completed; if not, the station hears reorder tone.
To operate from a Dterm
1. Press LNR/SPEED key; receive dial tone. The LCD displays:
2. Press the desired call code.
3. If the station is allowed this call, the call is completed; if not, the station hears reorder tone.
Service Conditions
1. This service cannot be received in the case of an outgoing call that uses OUTGOING TRUNK QUEUING
[O-2].
2. This service cannot be used in combination with CONSECUTIVE SPEED CALLING - SYSTEM [C-62].
3. This service cannot be used if the calling station is holding another line.
4. The ATTENDANT CONSOLE [A-3] cannot activate this service feature.
(Time Display) LNR [ * ] / SPEED [ _ _ ] 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 128NDA-24311, Issue 1
S-107 Station Individual Trunk Access - PRI
S-107 Station Individual Trunk Access - PRI
General Description
This feature permits a station to access an individual ISDN trunk via dial access.
Operating Procedure
1. Lift the handset; receive the dial tone.
2. Dial the feature access code, trunk route number, trunk number, and desired telephone number; receive
the ringback tone.
3. When the called party answers, communication can begin.
Service Conditions
1. The trunk route number that can be designated is from 1 to 1024. The trunk number that can be designated
is from 1 to 255.
2. When the designated trunk is busy, the caller receives busy tone.
3. This service cannot be activated to an incoming trunk.
4. Minimum number of digits required to activate this feature is (number of digits of access code) + 6.
5. The call is not originated until the number of digits of the destination telephone number reaches the
maximum number of digits of office code determined in system data. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 129
Tandem Switching of Tie Trunks - 2/4-Wire - PRI T-37
T-37  Tandem Switching of Tie Trunks - 2/4-Wire - PRI
General Description
This feature allows PRI trunk-to-tie-trunk connections through the NEAX2400 IPX, without the need for any
Attendant assistance or control. The major use of this feature is in association with the Dial Tandem Tie Line
Network to allow Tie line connections and incoming Tie line calls automatic access to, and completion of, local
Central Office calls.
Operating Procedure
1. Lift the handset; receive dial tone from the distant office.
2. Dial the Tie trunk access code; receive dial tone from the NEAX2400 IPX.
3. Dial 9; receive dial tone from the distant PBX or local Central Office.
4. Dial the Central Office exchange number (local or toll).
Service Conditions
1. When using the 2-wire application, there may be an appreciable decrease in transmission decibel levels.
2. The 4-wire E&M Trunk package provides amplification/attenuation, so that the desired transmitting and
receiving levels can be maintained, providing the overall tandem system with transparency.
3. When Tie trunks are busy, the calling station receives busy tone.
4. Each incoming Tie trunk can have various restrictions for Tie Line-to-Central Office calling.
5. Careful consideration should be given to access code numbering plans to avoid unnecessary loss of access
codes and code duplication within the same system.
6. Tandem switching can also be accomplished via the ATTENDANT CONSOLE [A-3].
7. There is no limitation to the allowable number of tandem switching connections.
Interactions
1. TOLL DENIAL/TOLL DIVERSION [T-6]: If TOLL DENIAL is applied to an incoming Tie trunk group,
the calling user is routed to reorder tone if an attempt is made to dial-access a toll call.
2. The TOLL RESTRICTION - 3/6-DIGIT [T-7] feature is assigned on a per incoming Tie trunk group basis.
The distant calling user is routed to reorder tone if an attempt is made to dial a restricted number code.
3. STATION MESSAGE DETAIL RECORDING (SMDR) [S-10]: On tandem connections, the incoming
Tie trunk group route number and outgoing trunk number are recorded.
4. Two outgoing trunk group restriction tables are provided per system. The Direct Dial Access table is
indexed when a distant user dials the trunk group access code, and the ATTENDANT CONSOLE [A-3]
table is indexed on Attendant completed calls. 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 130NDA-24311, Issue 1
T-38 Three-Way Calling - PRI
T-38 Three-Way Calling - PRI
General Description
This feature enables any user to add another party to an existing ISDN network connection, establishing a three-way
conference.
Operating Procedure
1. Place the original party on hold.
2. Press the switchhook; receive special dial tone.
3. Dial the desired number; receive an answer.
4. Announce the conference and press switchhook again.
5. THREE-WAY CALLING - PRI is now established.
Service Conditions
1. The originating party can hang up at any time. The other two parties remain connected.
2. Any combination of parties (internal or external) can be included in THREE-WAY CALLING - PRI.
3. The maximum number of simultaneous three-way calls is dependent on the quantity of
conference-function trunks within the system. The conference function is included in the INT and
TSW-INT cards.
4. The THREE-WAY CALLING - PRI feature is not restricted by the line class of service assigned to the
user’s line; therefore, a fully restricted station can transfer a call to another station or the ATTENDANT
CONSOLE [A-3]. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 131
Three-Way Calling - Dterm - PRI T-38D
T-38D Three-Way Calling - Dterm - PRI
General Description
This feature enables a Dterm user to establish a three-way conference by connecting an additional party to an already
existing conversation.
Operating Procedure
1. Press the TRANSFER key; receive special dial tone; the original party is placed on hold.
2. Dial the desired number; receive an answer.
3. Announce the conference and press the CONF key.
4. THREE-WAY CALLING is now established. The LCD displays:
Service Conditions
1. Originating party can hang up at any time. The other two parties are not disconnected.
2. Any combination of parties (internal or external) can be included in THREE-WAY CALLING - D
term -
PRI.
3. The maximum number of simultaneous three-way calls is dependent on the quantity of conference-
function trunks within the system. The conference function is included in the INT and TSW- INT cards.
4. The THREE-WAY CALLING - D
term - PRI feature is not restricted by the line class of service assigned
to the user’s line; therefore, a fully restricted station can transfer a call to another station or the
ATTENDANT CONSOLE [A-3].
(Time Display) CONF 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 132NDA-24311, Issue 1
T-40 Toll Denial/Toll Diversion - PRI
T-40  Toll Denial/Toll Diversion - PRI
General Description
This feature prohibits users from placing long distance calls over the specific ISDN network trunks. Restricted calls
are routed to either an ATTENDANT CONSOLE [A-3] (diversion) or to the reorder tone (denial).
Operating Procedure
No manual operation is required once this feature is programmed into system data.
Service Conditions
1. TOLL DENIAL/TOLL DIVERSION - PRI is an industry standard 0/1 type.
2. Immediately after dialing any area code with a second digit 0 or second digit 1, the user is restricted.
3. Restricted calls are normally routed to reorder tone. Restriction can be programmed to give the user
reorder tone or to divert him/her to the ATTENDANT CONSOLE [A-3] when the user accesses DIRECT
OUTWARD DIALING [D-9].
4. This feature is applied to individual stations on a route restriction basis.
5. TOLL DENIAL/TOLL DIVERSION - PRI is set on a per TENANT [T-12] basis.
6. The 0/1 toll denial and toll diversion feature cannot be used together for the same tenant.
7. The 0/1 toll denial and toll diversion feature is assigned on a per-line (RSC) Class of Service and/or
per-incoming-dial-repeating-tie-trunk group basis. When provided, the feature is applicable on a
per-trunk-group basis. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 133
Toll Restriction - 3/6 Digit - PRI T-41
T-41  Toll Restriction - 3/6 Digit - PRI
General Description
This feature allows the NEAX2400 IPX to be programmed to restrict outgoing ISDN calls according to the specific
area and/or Central Office codes. This restriction is controlled on the basis of a three-digit area code or six-digit area
and office code numbering plan.
Operating Procedure
No manual operation is required.
Service Conditions
1. The programmed restriction pattern may consist of either those codes to be allowed, or those codes to be
denied.
2. The TOLL RESTRICTION - 3/6-DIGIT - PRI feature is assigned on a per-line CLASS OF SERVICE -
INDIVIDUAL [C-15] basis.
3. The system can be programmed to ignore digit 1 prefixing an area code pattern.
4. When a toll call is denied, reorder tone is returned to the calling party. If desired, the calling party can be
routed to the ATTENDANT CONSOLE [A-3]. See TOLL DENIAL/TOLL DIVERSION - PRI [T-40].
5. Each trunk group is assigned its own TOLL RESTRICTION table.
6. THROUGH DIALING feature: The Through Dialing feature does not override the TOLL RESTRICTION
feature.
7. The TOLL DENIAL/DIVERSION - PRI [T-40] and TOLL RESTRICTION - 3/6-DIGIT - PRI features
are assigned on a per-tenant basis. 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 134NDA-24311, Issue 1
U-6 Uniform Call Distribution (UCD) - PRI
U-6 Uniform Call Distribution (UCD) - PRI
General Description
This feature distributes incoming calls from ISDN trunk to a group of up to 100 stations. Calls are distributed to idle
stations, in a circular pattern, in the order which they arrive.
If a station transfers a call to a busy UCD group, the call can wait in queue until a station in the group becomes idle.
Operating Procedure
To transfer a call to a busy UCD group
1. All the stations in a UCD group are busy.
2. A user not in the group answers an incoming call (trunk or station).
3. The user dials the UCD pilot number after pressing the switchhook or the TRANSFER key.
a.) The user hears busy tone.
b.) The calling party is held.
4. The station goes on-hook.
The calling party hears ringback tone. (during queuing)
5. The UCD group becomes idle.
a.) The call terminates to an idle station in the UCD group.
b.) The calling party is hearing ringback tone. (during ringing)
6. The idle station answers the call.
Now the calling party is connected to the UCD station.
Service Conditions
1. The maximum number of UCD groups is 63.
2. Up to 100 stations can be programmed into a single UCD group.
3. UCD groups are assigned through the MAINTENANCE ADMINISTRATION TERMINAL (MAT)
[M-18].
4. Stations are arranged in STATION HUNTING - CIRCULAR [S-7] group. A call to the group starts at the
first idle station after the last station that received a call.
5. If all of the group’s stations are busy, the call waits in a queue. The caller hears the ringback tone. The first
call in the queue will be answered first.
6. A station can block UCD calls by dialing a Make Busy code (1 to 3 digits), or by pressing the DND or
BYO key (if it is a D
term). The station can still make calls and receive calls to its own telephone number.
7. Each UCD group is assigned a UCD group number, allowing DIRECT INWARD DIALING [D-8] calls
to be routed to selected groups. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 135
Uniform Call Distribution (UCD) - PRI U-6
Service Conditions (cont’d)
8. If the Attendant transfers a call to a busy UCD group, the call waits in queue until a station in the group
becomes idle. However, a station cannot transfer a call to a busy UCD group.
9. Incoming calls to individual stations in the group are not distributed around the group; only calls to the
UCD group number use the circular distribution.
10. Each UCD group has a controlling station. Only the controlling station or the Attendant can activate or
deactivate CALL FORWARDING - ALL CALLS [C-5] when the UCD group number is not a phantom
number. UCD does not work at the CALL FORWARDING - ALL CALLS [C-5] destination, even if the
destination station is a controlling station.
11. If CALL FORWARDING - ALL CALLS [C-5] is set on a controlling station and the destination station
is idle, a call to the UCD group is transferred. If the designated station is busy, the user hears busy tone.
12. If CALL FORWARDING - ALL CALLS [C-5] is set on a non-controlling station, that station is skipped
in any UCD hunt.
13. The Attendant can use BUSY VERIFICATION [B-3] to check the busy/idle condition of the UCD
stations. This feature cannot determine if the user used the Make Busy feature.
14. CALL WAITING - ORIGINATING [C-31] can be activated by an individual UCD station toward another
station within the system. Also, another user can activate this feature toward an individual UCD group
station.
15. CALL WAITING - TERMINATING [C-12], when assigned to an individual UCD group station, allows
the calling station to wait on the called station’s line when it is busy. The group user can be connected to
the waiting call by hanging up; the station rings and the call is connected when the caller goes off-hook.
These calls have priority over UCD calls in the queue.
16. CALL BACK [C-1] can be activated by an individual UCD group station toward another station. Also,
another station can activate this feature toward an individual UCD station. CALL BACK [C-1] can be
activated toward a UCD group number when all stations and UCD queue are busy. CALL BACK [C-1] is
set to the controlling station.
17. A UCD group number can be used as the destination station of DIRECT-IN TERMINATION [D-7] or
NIGHT CONNECTION - FIXED [N-1], NIGHT CONNECTION - FLEXIBLE [N-2].
18. When a phantom number is assigned to the controlling station of a UCD group, the phantom number is
the UCD group number.
19. UCD queueing has precedence over CALL FORWARDING - INTERCEPT/ANNOUNCEMENT -
ATTENDANT [A-1]. During queuing block, the CALL FORWARDING - INTERCEPT/
ANNOUNCEMENT - ATTENDANT [A-1] is valid. The Attendant hears reorder tone when the CALL
FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT [A-1] is restricted.