NEC Neax 2400 Imx Feature Programming Manual

							NEAX2400 IMX Feature Programming Manual
ND-70184 (E), Issue 3
Page 177
Class Of Service - Individual C-15
C-15  Class Of Service - Individual
General Description
This feature permits all NEAX2400 IMX stations to be assigned a Class of Service in accordance with the degree
of system use desired. Each station is assigned one class from each of three groups.
Operating Procedure
CLASS OF SERVICE - INDIVIDUAL is assigned via system data entry. Thereafter, each station is automatically
provided with the desired degree of service.
Service Conditions
1. The CLASS OF SERVICE - INDIVIDUAL feature in the NEAX2400 IMX contains three categories:
Telephone Equipment Class (TEC), Service Feature Class (SFC), and Route Service Class (RSC).
2. TEC determines the type of terminal and the signalling arrangement necessary.
3. Trunk Route Restriction Class provides 15 groups. Separate restriction patterns for each group are
programmed in system data. Group RSC0 is reserved for ATTENDANT CONSOLE use only.
4. Fifteen types of Service Feature Classes are available for access to the following special service features.
These classes are assigned to each station in order to determine which features a particular station will be
permitted to use.
ATTENDANT CAMP-ON WITH TONE INDICATION [A-1]
CALL BACK [C-1]
CALL FORWARDING [C-2, C-3, C-5]
CALL HOLD [C-6]
DATA LINE SECURITY [D-12]
EXECUTIVE RIGHT-OF-WAY [E-1]
OUTGOING TRUNK QUEUING [O-2]
SMDR [S-10]
SPEED CALLING - SYSTEM [S-3]
TRUNK ANSWER FROM ANY STATION (TAS) [T-8]
For details, refer to the NEAX2400 IMX Office Data Specification.
5. Stations may be programmed to change SFC and RSC when the Attendant has set NIGHT CONNECTION
[N-1, 2]. This is accomplished via system data entry. For further information, refer to DAY/NIGHT
CLASS OF SERVICE [D-15].
6. TEC, RSC, and SFC are independent, with no interaction between them.
7. RSC and SFC can be assigned independently on a TENANT [T-12] basis.
8. The system software is capable of eliminating 5dB loss on station-to-station calls on a per-station basis.
9. The system software is capable of eliminating DISTINCTIVE RINGING [D-10] on a per-station basis (for
OPX stations).
10. RSC can be overridden by a new RSC, using the AUTHORIZATION CODE [A-20] feature.
Interactions
The following features interact with the fully restricted station:
1. CALL TRANSFER - ALL CALLS [C-11]: A fully restricted station can be transferred to a station or the
Attendant by another party using the CALL TRANSFER - ALL CALLS [C-11] feature. The fully
restricted station may transfer a station-to-station call to a station or the Attendant. 
						

							NEAX2400 IMX Feature Programming Manual
Page 178ND-70184 (E), Issue 3
C-15 Class Of Service - Individual
Interactions (cont’d)
2. CALL FORWARDING [C-2, 3, 5]: Station-to-station calls can be forwarded to a fully restricted station.
An attempt to forward an incoming trunk call to a fully restricted station will result in reorder tone.
3. STATION HUNTING [S-7, 8, 9]: Any call directed to a busy, fully restricted station will hunt to an
alternate station. Careful consideration is required when assigning a fully restricted station to a hunt group,
since incoming trunk calls directed to a fully restricted station will result in returning reorder tone.
4. TRUNK ANSWER FROM ANY STATION (TAS) [T-8]: An attempt by a fully restricted station to
answer a call via the TAS feature will result in reorder tone.
The following features interact with inward route restricted stations:
1. THREE-WAY CALLING [T-2]: When a user is restricted from receiving direct calls from a trunk group,
the user cannot be added to an established connection that includes the restricted trunk group.
2. CALL FORWARDING [C-2, 3, 5]: Incoming trunk calls cannot be forwarded to an inward route restricted
station.
3. CALL PICKUP [C-7, 30]: Incoming trunk calls cannot be answered by an inward route restricted station. 
4. ATTENDANT CAMP-ON [A-1]: This feature is denied on calls extended to an inward route restricted
station. Attempts will be routed to reorder tone.
5. STATION HUNTING [S-7, 8, 9]: Hunting of an incoming trunk call to an inward route restricted station
is not allowed.
6. TRUNK ANSWER FROM ANY STATION [T-8]: A user restricted from receiving direct incoming calls
via a given trunk group cannot use the TAS feature to answer calls received via that trunk group.
7. NIGHT SERVICE [N-1, 2]: Restrictions can be changed for a given station when the system is switched
to the night mode of operation; therefore, the assignment of an inward route restricted station as a night
station can be allowed (see DAY/NIGHT CLASS OF SERVICE [D-15].)
8. CODE CALLING ACCESS [C-21]/MEET ME PAGING [M-1]: Connection of an inward route restricted
line to an answer-back channel is not denied when the call is an incoming exchange call.
Programming
Day/Night Class
STEP 1:ASYD - System Data 1, Index 75. Should the following commands be developed for Day/Night. 0/1:
No/Yes
Note:
DAY/NIGHT CLASS OF SERVICE [D-15]. If Day/Night operation is to remain the same, the following bits should be
assigned as data “0”. Only those restrictions that will change between Day and Night should be assigned as data “1”.
Further assignments MUST be made in the corresponding command.
Bit 0 - Develop ARSC command for Day/Night?
Bit 1 - Develop ASFC command for Day/Night?
Bit 2 - Develop ATNR command for Day/Night?
Bit 3 - Develop ATDP command for Day/Night?
Telephone Class
STEP 2:ASDT - Assign Tenant No., Station No., LENS, and the TEC to the station. This is used in regular
business systems. Assign the SFC and RSC.
TN: Tenant Number
STN: Station Number
LENS: Line Equipment Number (6 digits) 
						

							NEAX2400 IMX Feature Programming Manual
ND-70184 (E), Issue 3
Page 179
Class Of Service - Individual C-15
Programming (cont’d)
TEC: Telephone Class (1-31)
1: DP (10pps)
2: PB
3: DP/PB
12: D
term
13: Data terminal via Dterm
14: Hotline
15: CAS Line
16: Data terminal via Data Module
18: Virtual Circuit
23: ISDN Terminal
27: Eight Conference Equipment
RSC: Route Restriction Class (0-15). For assignment of RSC, ARSC command.
SFC: Service Feature Class (0-15). For assignment of SFC, ASFC command.
STEP 3:ASCL - This command may be used to change the CLASS OF SERVICE - INDIVIDUAL for existing
stations. The RSC, SFC, and TEC may all be changed.
Service Feature Class
STEP 1:ASFC - A possible 16 (0-15) different SFCs may be constructed allowing or denying access to the
various features.
Route Restriction Class
STEP 1:ASYD - System Data 2, Index 1, Bits 4 & 5. Should a restricted station be routed to the Attendant
Console or receive reorder tone? Reorder tone: Bit 4 = 0, Bit 5 = 0. ATTENDANT CONSOLE: Bit
4=1, Bit 5=0.
STEP 2:ARSC - A possible 16 (0* - 15) different Route Restriction Classes may be constructed, either
allowing a call or subjecting the call to TOLL DENIAL/DIVERSION [T-7] or TOLL RESTRICTION
- 3/6 DIGIT [T-7].
STEP 3:AT D P - Assignment of Toll Distinctive Pattern command is assigned when Toll Restriction is
required. When Toll Restriction changes from Day to Night, then ATDP must be assigned for both
Day mode and Night mode.
* RSC 0 is reserved for Attendant Console use only.
Note:
If a restricted station is routed to the ATT, all RRI 3 must be RES = 2. 
						

							NEAX2400 IMX Feature Programming Manual
Page 180ND-70184 (E), Issue 3
C-17 Consultation Hold - All Calls
C-17  Consultation Hold - All Calls
General Description
This feature permits a user to hold any incoming or outgoing public network or TIE Line call, or any intra-office
call, while originating a call to another station within the system.
Operating Procedure
Holding the original call and placing the second call:
1. Press the switch hook; receive special dial tone.
2. The original call is held.
3. Dial the second telephone number; receive ringback tone.
4. The second station answers; the CONSULTATION HOLD state has been entered.
To return to the original call:
1. In any of the following cases, the calling station can return to the original call by pressing the switch hook:
a.) The second station called for CONSULTATION HOLD is busy.
b.) The calling station cannot gain access to second station because of restriction or any other reason.
c.) The second station does not answer.
2. If the second station hangs up, the calling station will be returned to the original call.
If the originating station flashes the switch hook, a THREE-WAY CALL [T-2] will be initiated.
Service Conditions
1. When TRUNK-TO-TRUNK CONNECTION [T-10] is provided with the system, an outgoing public
network or TIE Line call can be made by the user.
2. For outgoing calls, this feature may be activated only after 18 seconds have elapsed since the last digit
dialed.
3. CALL PICKUP - GROUP [C-7] is available on CONSULTATION HOLD.
4. A call can be forwarded to a station in the remote node via FCCS link.
Interactions
1. This feature is denied whenever the destination telephone set is engaged in any state other than a simple
2-party connection.
2. CONSULTATION HOLD-ALL CALLS must always be made available when service features require
switch hook flashing.
3. Indexes 156 and 157 also are used for SMDR, establishing an arbitrary connection timing.
4. If a party is involved in a CONSULTATION HOLD-ALL CALLS state or in an established THREE-
WAY CALLING [T-2] connection, attempts to override the connection are denied. These features are:
EXECUTIVE RIGHT-OF-WAY [E-1]
CALL WAITING - TERMINATE [C-12]
BUSY VERIFICATION [B-3]
ATTENDANT CAMP-ON WITH TONE INDICATION [A-1]
ATTENDANT OVERRIDE [A-7] 
						

							NEAX2400 IMX Feature Programming Manual
ND-70184 (E), Issue 3
Page 181
Consultation Hold - All Calls C-17
Interactions (cont’d)
5. Features that cannot be activated while a user has a party in CONSULTATION HOLD-ALL CALLS are:
EXECUTIVE RIGHT-OF-WAY [E-1]
TRUNK ANSWER FROM ANY STATION [T-8]
CALL BACK, Activate or Cancel [C-1]
CALL PICKUP-DIRECT [C-30]
CALL FORWARDING, Activate or Cancel [C-2, 3, 5]
OUTGOING TRUNK QUEUING, Cancel [O-2]
SPEED CALLING-INDIVIDUAL, Entry [S-21]
MESSAGE REMINDER [M-19D]
6. All other features may be activated as long as the user’s line CLASS OF SERVICE-INDIVIDUAL [C-15]
allows that feature.
7. Upon establishing a CONSULTATION HOLD-ALL CALLS connection and dialing a third party, if the
user receives busy or reorder tone instead of ringback tone, the user flashes once to disconnect the tone
and reconnect the second party.
8. Upon establishing a CONSULTATION HOLD-ALL CALLS connection and dialing a
MISCELLANEOUS TRUNK ACCESS [M-2] code, if no dial tone is given (after the trunk is seized), or
if a mistake is made in dialing, or if intercept announcement or a permanent tone is given, the user must
go on-hook and wait for ringback tone.
9. A user, who established CONSULTATION HOLD-ALL CALLS, is reconnected to the party in soft hold
when the third party disconnects.
10. When using CALL TRANSFER-ALL CALLS [C-11] from a station (second party) to another station or
trunk (third party), the control station can transfer the call during ringing (blind transfer). When the control
station goes on-hook, the station in soft hold is connected to the third party’s connection and hears
ringback tone. A 30-second timer is set when the controlling station goes on-hook. If the timer times out
before the third party answers, the control station will receive ringback tone.
11. Reorder tone is returned to the station using CONSULTATION HOLD-ALL CALLS when the following
actions occur:
 The user attempts to place an off-net call using MISCELLANEOUS TRUNK ACCESS [M-2] on a
restricted route.
 The user dials the number of an unassigned station or station residing in an inaccessible tenant via
Tenant Service.
 The user dials vacant or invalid first digit (no assignment in the ANPD command either for level or
connection status).
 The TRANSFER key or FLASH BUTTON-D
term [F-3D] is used instead of momentarily pressing the
switch hook. A FLASH BUTTON-Dterm [F-3D] is required for a Connection Index of B, Busy.
Programming
ASYD - System Data 1, Index 156. Trunk Soft Hold Timer A, used with second dial tone trunks.
Assign data 00H for 30 seconds. (Data 31H may be used for a value of two seconds if CALL
TRANSFER-ALL CALLS [C-11] is to be used immediately after connecting to the trunk.) This is the
time between trunk connection and when switch hook flash is allowed on a non-senderized trunk
connection. 
						

							NEAX2400 IMX Feature Programming Manual
Page 182ND-70184 (E), Issue 3
C-17 Consultation Hold - All Calls
Programming (cont’d)
System Data 1, Index 157. Trunk Soft Hold Timer A, used with senderized trunks. Assign data 00H for
a value of 18 seconds. (Data 31H may be used for a value of two seconds, if CALL TRANSFER-ALL
CALLS [C-11] is to be used immediately after connecting to the trunk.). This is the time between trunk
connection and when switch hook flash is allowed on a senderized trunk connection. It is also used to
determine when SMDR billing will begin.
System Data 2, Index 1, Bits 0 & 1. CONSULTATION HOLD allowed or denied? 00: Denied; 01:
Originating and Terminating Calls allowed, Tandem Call denied; 11: All calls allowed. Normally
assign data “11”.
System Data 3, Index 2, Bits 0-3. Switch hook flash starts timer. To calculate this value: (1 ~ FH) x
120 msec = Timer.
System Data 3, Index 2, Bits 4-7. Switch hook flash ends timer. To calculate this value: (1 ~ FH) x 120
msec = Timer. For both beginning and ending timers, assign 91H for 120 - 1080 msec.
FCCS Programming 
No unique programming is required for the FCCS network.
Note:
System timers may be set on a network basis in ASYDN.
f (t)
0 msBit 0-3
120 ms
No DetectionBit 4-7
1080 ms Disconnection 
						

							NEAX2400 IMX Feature Programming Manual
ND-70184 (E), Issue 3
Page 183
Consultation Hold - All Calls - DtermC-17D
C-17D  Consultation Hold - All Calls - Dterm
General Description
This feature permits a Dterm user to hold any incoming or outgoing public network or TIE Line, or any Intra-office
calls, while originating a call to another station within the system.
Operating Procedure
To hold original call and place second call from a Dterm:
1. Press the TRANSFER key; receive special dial tone.
2. The original call is held.
3. Dial the second telephone number; receive ringback tone.
4. The second station answers; the CONSULTATION HOLD state has been entered.
To return to the original call from a Dterm:
1. In any of the following cases, the calling station can return to the original call by pressing the TRANSFER
key:
a.) Second station called for consultation is busy.
b.) Calling station cannot gain access to the second station because of a restriction or some other
reason.
2. If the second station hangs up, the calling station will be returned to the original call.
3. If the second station stays on, pressing the TRANSFER key returns the original call to the D
term while the
second call is being held.
By pressing the CONF key, a THREE-WAY CALL [T-2] will be initiated.
Service Conditions
1. When TRUNK-TO-TRUNK CONNECTION [T-10] is provided with the system, an outgoing public
network or TIE Line call may be made by the user.
2. With outgoing calls, this feature may be activated only after 18 seconds have elapsed since the last digit
was dialed.
3. CALL PICKUP-GROUP [C-7] is available on CONSULTATION HOLD.
4. A call can be forwarded to a station in the remote node via FCCS link.
Interactions
1. This feature is denied whenever the destination telephone set is engaged in any state other than a simple
2-party connection.
2. CONSULTATION HOLD-ALL CALLS must always be made available when service features require
switch hook flashing.
3. Indexes 156 and 157 also are used for SMDR, establishing an arbitrary connection timing.
4. If a party is involved in a CONSULTATION HOLD-ALL CALLS state or in an established THREE-
WAY CALLING [T-2] connection, attempts to override the connection are denied. These features are:
EXECUTIVE RIGHT-OF-WAY [E-1]
CALL WAITING - TERMINATE [C-12]
BUSY VERIFICATION [B-3]
ATTENDANT CAMP-ON WITH TONE INDICATION [A-1]
ATTENDANT OVERRIDE [A-7] 
						

							NEAX2400 IMX Feature Programming Manual
Page 184ND-70184 (E), Issue 3
C-17D Consultation Hold - All Calls - Dterm
Interactions (cont’d)
5. Features that cannot be activated while a user has a party in CONSULTATION HOLD-ALL CALLS are:
EXECUTIVE RIGHT-OF-WAY [E-1]
TRUNK ANSWER FROM ANY STATION [T-8]
CALL BACK, Activate or Cancel [C-1]
CALL PICKUP-DIRECT [C-30]
CALL FORWARDING, Activate or Cancel [C-2, 3, 5]
OUTGOING TRUNK QUEUING, Cancel [O-2]
SPEED CALLING-INDIVIDUAL, Entry [S-21]
MESSAGE REMINDER [M-19D]
6. All other features may be activated as long as the user’s line CLASS OF SERVICE-INDIVIDUAL [C-15]
allows that feature.
7. Upon establishing a CONSULTATION HOLD-ALL CALLS connection and dialing a third party, if the
user receives busy or reorder tone instead of ringback tone, the user flashes once to disconnect the tone
and reconnect the second party.
8. Upon establishing a CONSULTATION HOLD-ALL CALLS connection and dialing a
MISCELLANEOUS TRUNK ACCESS [M-2] code, if no dial tone is given (after the trunk is seized), or
if a mistake is made in dialing, or if intercept announcement or a permanent tone is given, the user must
go on-hook and wait for ringback tone.
9. A user, who established CONSULTATION HOLD-ALL CALLS, is reconnected to the party in soft hold
when the third party disconnects.
10. When using CALL TRANSFER-ALL CALLS [C-11] from a station (second party) to another station or
trunk (third party), the control station can transfer the call during ringing (blind transfer). When the control
station goes on-hook, the station in soft hold is connected to the third party’s connection and hears
ringback tone. A variable timer is set when the controlling station goes on-hook. If the timer times out
before the third party answers, the control station will receive ringback tone.
11. Reorder tone is returned to the station using CONSULTATION HOLD-ALL CALLS when the following
actions occur:
 The user attempts to place an off-net call using MISCELLANEOUS TRUNK ACCESS [M-2] on a
restricted route.
 The user dials the number of an unassigned station or station residing in an inaccessible tenant via
Tenant Service.
 The user dials vacant or invalid first digit (no assignment in the ANPD command either for level or
connection status).
 The TRANSFER key or FLASH BUTTON-D
term [F-3D] is used instead of momentarily pressing the
switch hook. A FLASH BUTTON-Dterm [F-3D] is required for a Connection Index of B, Busy.
Programming
ASYD - System Data 1, Index 156. Trunk Soft Hold Timer A, used with second dial tone trunks.
Assign data 00H for 30 seconds. (Data 31H may be used for a value of two seconds if CALL
TRANSFER-ALL CALLS [C-11] is to be used immediately after connecting to the trunk.) This is the
time between trunk connection and when switch hook flash is allowed on a non-senderized trunk
connection. 
						

							NEAX2400 IMX Feature Programming Manual
ND-70184 (E), Issue 3
Page 185
Consultation Hold - All Calls - DtermC-17D
Programming (cont’d)
System Data 1, Index 157. Trunk Soft Hold Timer A, used with senderized trunks. Assign data 00H for
a value of 18 seconds. (Data 31H may be used for a value of two seconds, if CALL TRANSFER-ALL
CALLS [C-11] is to be used immediately after connecting to the trunk.). This is the time between trunk
connection and when switch hook flash is allowed on a senderized trunk connection. It is also used to
determine when SMDR billing will begin.
System Data 2, Index 1, Bits 0 & 1. CONSULTATION HOLD allowed or denied? 00: Denied; 01:
Originating and Terminating Calls allowed, Tandem Call denied; 11: All calls allowed. Normally
assign data “11”.
System Data 3, Index 2, Bits 0-3. Switch hook flash starts timer. To calculate this value: (1~FH) x 120
msec = Timer.
System Data 3, Index 2, Bits 4-7. Switch hook flash ends timer. To calculate this value: (1~FH) x 120
msec = Timer. For both beginning and ending timers, assign 91H for 120 - 1080 msec.
FCCS Programming 
No unique programming is required for the FCCS network.
Note:
System timers may be set on a network basis in ASYDN.
f (t)
0 msBit 0-3
120 ms
No DetectionBit 4-7
1080 ms Disconnection 
						

							NEAX2400 IMX Feature Programming Manual
Page 186ND-70184 (E), Issue 3
C-20 Centralized Attendant Service (CAS)
C-20  Centralized Attendant Service (CAS)
General Description
For applications requiring multiple sites, but having common interests or operation, the NEAX2400 IMX can
operate in a Main (attended) or Satellite (unattended) configuration. Typically, incoming calls to the satellite are
routed to the main location for processing by the Central Attendant(s) within the CAS network. This service feature
can be used to improve overall communication efficiency.
Operating Procedure
Listed Directory Number (LDN) Call: 
1. Upon arrival of an LDN call at a satellite system, the LDN call is automatically directed to the main system
via a release link trunk.
2. Upon receiving the incoming CAS call, the ATTENDANT CONSOLE(s) [A-3] will display the incoming
CAS call by flashing the CAS lamp.
3. The Attendant answers the incoming CAS call by pressing the CAS or ANSWER key; hears the Incoming
Call Tone (480 Hz - 440 Hz - 480 Hz) for 300 msec.
4. The Attendant presses the SHF key causing a switch hook flash; hears special dial tone from the satellite
system.
5. The Attendant dials the required telephone number in the satellite system.
6. Upon hearing ringback tone, the Attendant presses the RELEASE key to make the release link trunk
available to serve another call.
Recall on Dont Answer Call: 
1. A satellite system is arranged to re-establish a connection from a calling party via a release link trunk to
an Attendant in the main system, if the called station does not answer within a prefixed time.
2. Upon receiving the recall on a No Answer Call, the ATTENDANT CONSOLE(s) [A-3] will display the
incoming CAS call by flashing the CAS lamp.
3. The Attendant answers the incoming CAS call by pressing the CAS or ANSWER key; hears continuous
ringback tone (440Hz - 480 Hz) for 300 msec.
4. After hearing the burst of continuous ringback tone, the Attendant and the calling party converse over
ringback tone because of ringing the called station continuously during recall connection.
5. If the calling party desires to hold the connection, the Attendant presses the RELEASE key to make the
release link trunk available to serve another call.
Camp-on:
1. If the Attendant directs the satellite system to connect a call to a busy station, the satellite system transmits
a Camp-On confirmation tone (100 msec burst of 440 Hz) to the Attendant, also a Camp-On Indication
Tone (200 msec burst of 480 Hz) to the called station, and reconnects the calling party to the Attendant.
2. If the calling party desires to wait, the Attendant presses the RELEASE key to make the release link trunk
available to serve another call.
3. If the Camped-On station remains busy for longer than the prefixed time, the satellite system reconnects
the calling party via a release link trunk.
4. Upon receiving the recall on a Camped-On call, the ATTENDANT CONSOLE(s) [A-3] will display the
incoming CAS call by flashing the CAS lamp.
5. The Attendant answers the incoming CAS call by pressing the CAS or ANSWER key; hears the Camp-
On Identification Tone (100 msec burst of 440 Hz).
6. When the Camped-On station becomes idle, the satellite system rings the camped-on station.