NEC Neax 2400 Imx Business Features And Specifications

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 521
Three-Way Calling - DtermT-2D
Service Conditions (cont’d)
5. When the additional station answers the held call, the decision to send Override Tone depends on the
originating station service restriction class.
6. The Conference Trunk (CFT) function is required for the node which accommodates the station operating
a three-way conference within the FCCS network.
7. Three-Way Calling can also be established when using the trunk belonging to the remote node within the
FCCS network. 
						

							NEAX2400 IMX Business Features and Specifications
Page 522NDA-24221, Issue 3
T-3 TIE Line Access
T-3 TIE Line Access
General Description
This feature allows any user dial access to a TIE Line. 
Operating Procedure
1. Lift the handset; receive dial tone.
2. Dial the TIE LINE ACCESS code; receive dial tone from the distant PBX.
3. Dial the desired extension number.
Operating Procedure
1. TIE LINE ACCESS may be denied to individual stations via CLASS OF SERVICE-INDIVIDUAL [C-
15].
2. The PBX system is equipped with either automatic or dial-repeating TIE trunks.
3. When a power failure occurs at the local NEAX2400 IMX (without reserve power backup), all TIE trunk
connections are lost.
4. Each TIE Line group can be arranged for DP or DTMF address signaling incoming and/or outgoing.
5. TOLL DENIAL [T-6]: The calling user is routed to reorder tone if an attempt is made to dial-access a call.
6. The NEAX2400 IMX can be equipped with senderized TIE trunks. Immediate start, delay, or wink start
signaling is available.
7. When a trunk group access code is dialed by a user, the TIE trunk group is used to index a trunk group
restriction table to determine if the call attempt is allowed. For each outgoing trunk group, the following
restriction options can be assigned per RSC:
a.) Indicates the TIE trunk is not allowed access to the trunk group dialed.
b.) Indicates the TIE trunk is allowed access (unrestricted).
c.) Indicates the station is allowed access but is restricted from making 0/1 toll calls or is code (3-
digit, 6-digit) restricted.
8. Two outgoing trunk group restriction tables are provided per system. The Direct Dial Access table is
indexed when a user dials the trunk group access code and the ATTENDANT CONSOLE [A-3] table is
indexed on Attendant completed calls. The restriction options per RSC can differ per table, allowing
Attendant completion of outgoing calls for restricted stations.
9. DTMF cannot be received on an incoming TIE Line call when the Signal Interface for Incoming route data
is set for Immediate Start.
Interactions
1. For senderized TIE Lines, see UNIVERSAL SENDER [U-3]. The ANND command must be programmed
for Senderized TIE Lines (normally for 4(OGC)).
2. If other services, such as STATION MESSAGE DETAIL RECORDING [S-10] and LEAST-COST
ROUTING-3/6 DIGIT [L-5] are to be used in conjunction with this feature, the AMND command must
be programmed. Go to the ASTP and AOSP command, if digit translation is required.
3. MISCELLANEOUS TRUNK RESTRICTION [M-3]: Restrictions to TIE trunks are determined by the
Route Service Class (RSC) assigned to the station. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 523
TIE Line Connection With Pad Control T-5
T-5  TIE Line Connection With Pad Control
General Description
This feature provides a switchable transmission pad on TIE trunks that allows tandem connections. Necessary pad
control is activated to protect against echo.
Operating Procedure
No manual operation is required.
Service Conditions 
1. Pad Control (2dB) will automatically be switched in for the following connections:
a.) TIE Line-to-Station 
b.) Station-to-TIE Trunk/CCSA 
c.) CCSA-to-Station 
d.) TIE Line-to-Attendant 
e.) CCSA-to-Attendant 
f.) Attendant-to-TIE Trunk/CCSA 
2. Pad Control (2dB) will not be switched in for the following connections:
a.) TIE Line-to-C.O.Trunk/TIE/CCSA
b.) CCSA-to-C.O.Trunk/TIE/CCSA
c.) C.O.Trunk-to-TIE/CCSA 
d.) THREE-WAY CALLING [T-2] used in conjunction with TRUNK-TO-TRUNK CONNECTION
[T-10]
3. The 4W E&M Trunk/DTI [D-16] provides Pad Control (0, 2, 4, 8, 12, 16dB) so the desired transmitting
and receiving levels can be maintained, providing the overall tandem system with transparency.
Interactions
1. If volume on the DTI is too loud, assign CDN 30:Pad (ARTD) as data “2”. 
2. The 8TLT card provides four 2-wire DID, CCSA, and TIE Line circuit access. These circuits may be set
for loop or E&M signaling. The card contains switchable transmission pads that are switched in or out via
software command.
3. The 8TLT card provides four 4-wire TIE Line circuits. These circuits may be set for E&M signaling. The
card contains switchable transmission pads that are switched in or out via software. The 8TLT cards are
located in the Port Interface Module (PIM) carrier. A maximum of eleven 8TLT can be equipped per PIM. 
						

							NEAX2400 IMX Business Features and Specifications
Page 524NDA-24221, Issue 3
T-6 Toll Denial/Toll Diversion
T-6 Toll Denial/Toll Diversion
General Description
This feature prohibits users from placing long distance calls over a specific group of trunks. Restricted calls are
routed to either an ATTENDANT CONSOLE [A-3] (diversion) or to an intercept tone (denial). 
Operating Procedure
No manual operation is required after this feature is programmed into system data.
Service Conditions 
1. TOLL DENIAL/TOLL DIVERSION is the industry-standard 0/1 type. 
2. Immediately after dialing any area code with a second digit of “0” or “1”, the user is restricted.
3. Restriction may be programmed to give the user a busy signal or to divert the user to the Attendant
Console. 
4. This feature may be applied to all types of trunks (DDD, FX, WATS), provided the same restrictions apply
to all trunks of the same type.
5. This feature is applied to individual stations on a route-restriction basis.
6. TOLL DENIAL/TOLL DIVERSION is set on a per-TENANT [T-12] basis.
7. The 0/1 Toll Denial and Toll Diversion feature cannot be used together for the same tenant.
8. The 0/1 Toll Denial and Toll Diversion feature is assigned on a per-line (RSC) Class of Service and/or
per-incoming TIE Trunk group basis. The feature, when provided, is applicable on a per-trunk group basis.
Interactions
1. TOLL DENIAL/DIVERSION is applicable only to RES 2 when assigning routes via Route Restriction
Index (RRI) 3.
2. LEAST-COST ROUTING-3/6 DIGIT [L-5]: For LCR(S) applications, allow the LCR Flag Route. The
route chosen via AOPR will then be governed by the RSC of the station. If the station is toll-restricted
from the route, TOLL DENIAL/DIVERSION will apply
3. TOLL DENIAL and TOLL DIVERSION cannot be used simultaneously in the same tenant.
4. ROUTE ADVANCE [R-6]: Station A dials a toll call by accessing route 1. Route 1 is busy and advances
to route 2. Station A is restricted from making this call on route 2.
5. PASSING DIAL TONE [P-2]: The Attendant Console cannot use the PASSING DIAL TONE [P-2]
feature to allow a toll restricted station to dial a restricted number. 
6. In System Data 1, Index 135, a seizure guard timer exists to protect the system from individuals who
attempt to defeat TOLL RESTRICTION/TOLL DIVERSION with rapid dialing. Leave as data “00” for
a default value of 1 second (RAM data is 1FH).
7. A station uses the OGC direct dial access to a route. The station is restricted via RES 0: Connection
Restricted. The station receives reorder tone. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 525
Toll Restriction - 3/6-Digit T-7
T-7 Toll Restriction - 3/6-Digit
General Description
This feature allows the NEAX2400 IMX to be programmed to restrict outgoing calls according to specific area and/
or central office codes. This restriction is controlled on the basis of a three-digit area code or a six-digit combination
area and office code numbering plan.
Operating Procedure
No manual operation is required.
Service Conditions 
1. The programmed restriction pattern may consist of either codes to be allowed or codes that are to be
denied.
2. This feature is assigned on a CLASS OF SERVICE-INDIVIDUAL [C-15] basis.
3. When a toll call is denied, reorder tone will be returned to the calling party. If desired, the calling party
can be routed to the Attendant Console. See TOLL DENIAL/TOLL DIVERSION [T-6] for further details.
4. 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.
Interactions 
1. When Toll Restriction is specified in ARRC, all the possible dialing-patterns must be assigned in ATDP.
If office codes within an Area Code do not need to be restricted, allow the Area Code only. Always provide
the system with the most economical configuration of digits when constructing TOLL RESTRICTION
tables.
2. In the ARRC command, ARI-A-RES must be programmed to allow two trunks and a station in a
conference. ARI-D-RES is programmed if the two trunks are to remain connected after the station drops
off, or if TOLL RESTRICTION applies to a direct trunk-to-trunk connection, such as TIE Line to DDD.
3. ROUTE ADVANCE [R-6]: Station A dials a toll call by accessing route 1. Route 1 is busy and advances
to route 2. Station A is restricted from making this call on route 2. The call will be restricted.
4. PASSING DIAL TONE [P-2]: The Attendant cannot use PASSING DIAL TONE [P-2] to allow a toll-
restricted station from using a restricted route. 
5. OUTGOING TRUNK QUEUING [O-2]: When a station is restricted from all other routes, a user may
queue a trunk to complete a call over unrestricted routes.
6. LEAST-COST ROUTING-3/6-DIGIT [L-5]: Translations in AFRS must be such that the digits dialed in
the trunk-to-trunk connection would be recognizable in terms of choosing a route. If a route cannot be
chosen, TOLL RESTRICTION 3/6 DIGIT cannot be applied.
7. When using the FCCS network, the outgoing call using a trunk in the remote node 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. 
						

							NEAX2400 IMX Business Features and Specifications
Page 526NDA-24221, Issue 3
T-8 Trunk Answer from Any Station (TAS)
T-8  Trunk Answer from Any Station (TAS)
General Description
This feature allows any station (except one with incoming restrictions) to answer incoming calls when the system is
in Night Mode. Incoming exchange network calls will activate a common alert (TAS) signal at the customer’s
premises. By dialing a specified code, any station may answer the call and then extend it to any other station using
CALL TRANSFER-ALL CALLS [C-11].
Operating Procedure
1. TAS signal (bell, buzzer, etc.) sounds. 
2. Lift the handset, receive dial tone.
3. Dial the specified TAS access code. 
4. Connection to incoming call is completed. 
Service Conditions
1. An incoming call that terminates in the Night mode will have the following priority:
a.) NIGHT CONNECTION-FLEXIBLE [N-2] 
b.) NIGHT CONNECTION-FIXED [N-1]
c.) TRUNK ANSWER FROM ANY STATION (TAS) [T-8] 
2. TAS indication will be activated for the following incoming calls:
a.) Listed Directory Number 
b.) Foreign Exchange
c.) WATS
d.) CCSA
3. All consoles assigned to handle calls for a particular group of stations (whether or not they belong to the
same TENANT [T-12]) must have NIGHT CONNECTION [N-1,2] set before this feature will be
activated.
4. The TAS indicator can be provided on a per-tenant basis. 
5. The TAS indicator must be locally-provided. 
6. This feature is sometimes referred to as Universal Night Answer (UNA).
7. Individual stations may be denied access to this feature via CLASS OF SERVICE-INDIVIDUAL [C-15].
8. If the system has changed to Day mode while a TAS call is being indicated, the ATTENDANT CONSOLE
[A-3] can be connected to this call.
9. Only one TAS per Tenant can be assigned as the TAS signalling port.
Interactions
1. For TAS to operate, an ATI circuit card is required, and the system must be in the Night mode, depending
on the type of Attendant Console system that is in service. Exercise care when setting the resistance value
via switch settings on the ATI circuit card. 
2. TENANT SERVICE [T-12]: Only one TAS circuit may be assigned per tenant.
3. NIGHT CONNECTION-FIXED/FLEXIBLE [N-1, 2]: TAS can be used in conjunction with NIGHT
CONNECTION-FIXED/FLEXIBLE [N-1, 2]. When the Night Connection station(s) is busy, incoming
calls are directed to TAS.  
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 527
Trunk Answer from Any Station (TAS) T-8
Interactions (cont’d)
4. CALL TRANSFER-ALL CALLS [C-11]: A station answering a call via the TAS feature will have access
to the transfer feature. 
5. CENTRALIZED ATTENDANT SERVICE (CAS) [C-20]: TAS may be installed at either the Main site
only or at both the Main and Satellite sites. Operations at either site are the same as TAS installed in a non-
CAS system. The Satellite system must have a means of placing the system into Night mode. This would
require an ATI circuit card connected to a Night switch.
6. CALL FORWARDING - ALL CALLS [C-5] / BUSY LINE [C-2]: When a Direct Inward Dialing (DID)
call terminates to a station setting CALL FORWARDING - ALL CALLS [C-5] or BUSY LINE [C-2] to
the Attendant, the call can be answered using the TAS feature.
7. CLASS OF SERVICE-INDIVIDUAL [C-15]: Stations must be allowed access to TAS via Service Feature
Class. The station Route Restriction Class will either allow or deny connection to incoming C.O. calls via
TAS. 
8. DAY/NIGHT CLASS OF SERVICE [D-15]: A CLASS OF SERVICE-INDIVIDUAL [C-15] change that
occurs when the system goes into Night mode may allow a station to answer incoming trunk calls that are
restricted to that station in Day mode. 
9. HOUSE PHONE [H-2], INDIVIDUAL ATTENDANT ACCESS [I-6], STATION-TO-STATION
CALLING-OPERATOR ASSISTANCE [S-12], and ATTENDANT NIGHT TRANSFER [A-19]: These
calls will not be directed to TAS when the system is in Night mode.
10. CONSULTATION HOLD [C-17]: TAS cannot be accessed via CONSULTATION HOLD. 
11. TRUNK ANSWER ANY STATION will not default if other provisions are not made to answer incoming
calls when the system is in Night mode. See the ACFR command. 
12. The type of Attendant Console system used determines how the system will enter into the Night mode.
See System Data 2, Index 2, Bits 2 & 3. 
13. A user receives a reorder tone after dialing the TAS access code if one or more of the following applies:
a.) Station line is inward restricted.
b.) Station line is fully restricted.
c.) Station is restricted from the TAS access code.
d.) Station has a party on Hold.
e.) Another station has answered the TAS call and no other calls are in the TAS queue.
14. Incoming calls remain in the TAS queue until answered from a station or until abandoned by the far end. 
						

							NEAX2400 IMX Business Features and Specifications
Page 528NDA-24221, Issue 3
T-9 Trunk Group Busy Lamp
T-9 Trunk Group Busy Lamp
General Description
This feature provides the ATTENDANT CONSOLE [A-3] with a visual indication when all trunks in a particular
trunk group are busy (LDN, WATS, FX, DOD, CCSA, TIE or Special Trunks). Assignment of the TGBLs is made
using the MAINTENANCE ADMINISTRATION TERMINAL (MAT) [M-18].
Operating Procedure
No manual operation is required.
Service Conditions
1. The ATTENDANT CONSOLE [A-3] must have a designated TRUNK GROUP BUSY LAMP (TGBL)
section. 
2. This feature may be used on trunk groups consisting of WATS, TIE, FX, and special trunks. 
3. Ten TGBLs are available on each Attendant Console. 
4. Trunk Group Warning to indicate when a preset number of trunks in a group is busy is not provided.
5. Trunk groups cannot be combined to light a common TGBL.
6. A maximum of 10 trunks including LD and TIE are displayed on an Attendant Console.
7. Desk Console cannot be used to activate this feature.
Interactions 
1. ATTENDANT CONSOLE [A-3] number is the equivalent to the trunk number when assigning the
Attendant Console Route 901 in ATRK.
2. The ATRK command must be assigned before the ATGL command. If ATRK is not assigned first,
ERROR: 0245, “ATTENDANT CONSOLE [A-3] not assigned yet”, will be indicated. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 529
Trunk-to-Trunk Connection T-10
T-10 Trunk-to-Trunk Connection
General Description
This feature provides any user with the ability to conference together either two Central Office calls or a Central
Office and TIE Line call.
Operating Procedure
1. Place incoming caller on hold.
2. Receive special dial tone.
3. Dial the desired Central Office or TIE access code. 
4. Receive second dial tone.
5. Dial the desired number; receive answer.
6. Announce the conference and momentarily press the switch hook again.
7. The original party is now included in connection. 
Service Conditions
1. The originating party may hang up at any time. The additional two parties will not be disconnected. 
2. This feature may be restricted to individual stations via System Data.
3. In the case of outgoing calls on trunks with no answer supervision, this feature may be activated only after
18 seconds have elapsed since the last digit was dialed. This timer is programmable in System Data.
4. In the case of outgoing calls on trunks with answer supervision, this feature may be activated as soon as
the called party answers. 
5. A user may hang up after completing a TRUNK-TO-TRUNK CONNECTION without affecting the
connection of the two outside parties, provided that: 
a.) One trunk is incoming and the other is outgoing.
b.) Both trunks are ground start.
c.) Users wait a programmed time interval after dialing an outside line before hanging up.
6. If the originating party encounters a no-answer or busy signal when trying to conference a third party, the
originating party switch hook flashes and is reconnected to the held call. 
7. This feature is inoperative when release signal is not provided from the distant end.
Interactions
1. For direct trunk-to-trunk connection, see TANDEM SWITCHING OF TIE TRUNKS-2/4-WIRE [T-1].
2. If a THREE-WAY CALLING [T-2] connection includes two trunks, then when the station hangs up, the
trunk will release, unless the trunks are allowed TRUNK-TO-TRUNK CONNECTION via the ARRC
command, ARI-D-RES. 
						

							NEAX2400 IMX Business Features and Specifications
Page 530NDA-24221, Issue 3
T-12 Tenant Service
T-12 Tenant Service
General Description
This feature provides for more than one organization (tenant) to share the same PBX. Through system programming,
each organization may be restricted to its own Central Office trunks, ATTENDANT CONSOLEs [A-3], and
extension links. In addition, incoming calls are directed to the specific organization (tenant). 
Operating Procedure
No manual operation is required.
Service Conditions 
1. An Attendant Console is normally provided for each tenant. However, when required, a single common
console may be shared by two or more tenants.
2. Inter-office calling between tenants may or may not be restricted, depending on System Data.
3. Different tenants may share a common group of trunks, where required. 
4. When a tenant station dials “0” (Operator Call Code), it will be connected to that tenant’s console.
5. Different tenants cannot use the same numbering plan.
6. The same telephone numbers cannot be assigned among different Tenants (for example, stations
numbered 2XXX can be associated with only one Tenant).
7. STATION-TO-STATION [S-11], CALL TRANSFER [C-11] THREE-WAY CALLING [T-2], TAS [T-
8] and CALL FORWARDING [C-2, 3, 5] calls between Tenants can be restricted or allowed.
8. SMDR [S-10] includes Tenant identification.
9. The same access code can be assigned among Tenants for service features (for example, CALL HOLD
[C-6], CALL BACK [C-1], CALL PICKUP - GROUP [C-7], CALL FORWARDING - ALL CALLS -
D
term [C-5D], SPEED CALLING [S-3], TAS [T-8], etc.).
10. The NEAX2400 IMX can provide TENANT SERVICE [T-12] to a maximum of 63 tenants.
11. Tenant numbers should be allocated on a network basis for the FCCS network.
Interactions 
1. To provide TENANT SERVICE, features need not be separated. Whenever possible, keep features
common to use data memory as economically as possible. When commands are separated, they must be
programmed for each tenant accommodated in System Data 2.
2. FORCED ACCOUNT CODES [F-7] and AUTHORIZATION CODES [A-20] do not require separate
tenant service for AMND, System Data 1, Index 93, Bit 6.
3. Each tenant may have its own Attendant Console(s), unless that number exceeds system capacity; for
example, five tenants in a two-PIM configuration. The number of consoles per tenant is not limited by
programming but is limited by the system configuration. 
4. Different tenants may or may not share the same CO trunks. Termination of a trunk is a function of the
ARSC command. DID trunks can be assigned to any tenant. However, the Listed Directory Number, as
assigned in the ALDN command, determines where the call terminates. If the incoming LDN digits are
assigned against Tenant 2, the call terminates to the Tenant 2 Attendant Console, even if the digits come
on a Tenant 1 trunk.