NEC Neax 2400 Imx Business Features And Specifications

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 511
Serial Call - DtermS-127
S-127  Serial Call - Dterm
General Description
This feature allows the Dterm user to set SERIAL CALL to the central office line/tie line call and extend the call to
the desired station/trunk. When the communication with the desired party ends, the announcement instructing the
caller to dial the next desired party number is sent out. The caller, by following the instructions, can be connected
to a number of destinations without hanging up.
Operating Procedure
1. The Dterm user answers the incoming central office line/tie line call.
2. The caller requests SERIAL CALL, and the D
term user presses the SERIAL CALL key.
3. The caller tells the desired station/trunk number to the D
term user; the Dterm user extends the call to the
desired station/trunk using Consultation Hold.
4. When the conversation ends, the caller receives the announcement requesting the caller to dial the next
telephone/trunk number.
5. The caller dials the desired station/trunk number. When the called party answers, communication begins.
6. When the conversation ends, the caller receives the announcement requesting the caller to dial the next
telephone/trunk number. The caller may successively dial the desired telephone/trunk number.
Note:For the Dterm equipped with a 24-digit LCD, the 16 digits on the left side of the LCD is used for the service set/cancel
indication. The 8-digit space on the right side is blank.
Service Conditions
1. Whether to activate this service can be determined on a system basis, but not on a tenant or incoming route
basis. Therefore, it is not available to activate this service for each incoming route.
2. SERIAL CALL can be set only for the incoming central office line, tie line, and ISDN line. It cannot be
set for the station or the outgoing trunk.
3. The station that can set/cancel SERIAL CALL is the D
term with the SERIAL CALL key. In case of the
incoming call from a ringdown trunk, the call has to be transferred from the Attendant to the Dterm, or the
Dterm should be previously designated as the Direct-In Termination station.
4. The D
term may set/cancel SERIAL CALL by pressing the SERIAL CALL key any time while engaged in
a call with the incoming trunk party. (The LCD indicates set (SERIAL SET)/cancel (SERIAL CANCEL)
for 5 seconds for every attempt, and the SERIAL CALL key lights red while SERIAL CALL is set.)
However, the D
term user must not have any other calls when using this service (i.e. this service cannot be
used together with CALL TRANSFER-ALL CALLS-Dterm [C-11D], CONSULTATION HOLD-ALL
CALLS-Dterm [C-17D], CALL WAITING-TERMINATING [C-12], etc.).
5. The caller can call the station, central office line, tie line, or the Attendant successively by activating
SERIAL CALL.
6. When the call terminates on the central office line/tie line in the multi-line and the called station answers,
the SERIAL CALL key lights red. However, in case the D
term user answers by CALL PICKUP - GROUP
[C-7]/CALL PICKUP - DIRECT [C-30], it does not light.
7. If SERIAL CALL is not set to the incoming trunk, the caller is not connected to the announcement when
the conversation with the first party ends (after being put on Consultation Hold), but receives reorder tone.
8. This service is available to the incoming route where AUTOMATED ATTENDANT [A-82] or REMOTE
ACCESS TO SYSTEM [R-2] are set.
9. When the registers are all busy when Serial Call is attempted, the caller receives reorder tone. 
						

							NEAX2400 IMX Business Features and Specifications
Page 512NDA-24221, Issue 3
S-127 Serial Call - Dterm
Service Conditions (cont’d)
10. Whether to send the announcement can be determined on a system basis. If the announcement is not sent,
the caller receives dial tone. Both the first and the second announcement is connected in single connection,
and the caller receives no tone until the announcement is sent.
11. When Serial Call is attempted, and the caller encounters all announcement trunks busy or when there is
no announcement trunk, the caller receives dial tone.
12. The caller can dial the desired telephone/trunk number during the announcement.
13. This service is provided only when the caller uses the DTMF telephone.
14. The caller is connected to the announcement when the caller is engaged in a two party connection with the
station, central office line, tie line, or the Attendant and then the station, central office line, tie line or the
Attendant releases.
15. If the caller does not dial any number after the announcement, the caller receives no tone until the register
prepause timer expires.
16. In case the register prepause timer expires after the announcement, whether to recall to the operator D
term
user or to release the call automatically can be selected on a system basis.
17. When recalling to the D
term, whether to end or continue this setting can be selected by system data.
However, in case the central office trunk works with Loop Start system (route data LSG=0), release cannot
be detected; therefore, when recall to the D
term, this setting is ended. If this setting is ended, the Dterm user
can press the SERIAL CALL key again and reset.
18. Recall to the D
term selected at item 17 is activated with the following steps and ringing is according to the
ringer pattern 5 ASYD Sys Data 3 INDEX 7.
a.) In case the D
term setting SERIAL CALL is free, the destination is the set line and only the Dterm
is called. If the set line is accommodated in the other Dterm multi-line, the other Dterm becomes
busy status (lights in red) and CALL FORWARDING – ALL CALLS [C-5] and FORWARDING
- DON’T ANSWER [C-3] is not available. When the set line is the my line of the D
term, the LCD
displays RECALL. (Ordinary transaction for recall to the Dterm user)
b.) In case the Dterm setting SERIAL CALL is busy, another free line among the Dterms is selected by
the same transaction as ordinary serial calling. Therefore, CALL FORWARDING - ALL CALLS
[C-5], CALL FORWARDING - BUSY LINE [C-2] and STATION HUNTING - CIRCULAR [S-
7] are available, and the LCD on the D
term which is selected as a Prime Line indicates RECALL. 
CALL FORWARDING - DON’T ANSWER [C-3] is not available. In case to end the setting is
selected at item 18, the central office line/tie line is released. (reorder tone is sent out); in case to
continue is selected, dialing of the next number is allowed. (Dial tone is sent out.)
19. Conditions for restriction are as follows:
a.) When the dead number or the dead level is dialed (even if the dead number announcement data is
assigned, the call is not connected to this announcement, but it is recognized as a redial call. If the
second announcement data is assigned [AAED EQP = 35], this announcement has priority).
b.) In case of inter digit timer timeout while the telephone number is dialed.
c.) When the called station does not answer for 30 seconds (if CALL FORWARDING - DON’T
ANSWER [C-3] is set, the call is forwarded).
d.) When the called station is busy (if CALL FORWARDING - BUSY LINE [C-2] is set, the call is
forwarded).
e.) The connection is restricted:
 when the telephone number where the connection with the central office line/tie line is restricted
is dialed.
 when the access code dialing for trunk call origination is restricted. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 513
Serial Call - DtermS-127
Service Conditions (cont’d)
 when the access code is dialed for trunk call origination, and inter digit timer expires before the
call originating route is determined, resulting in restriction.
 when the outgoing trunks are all busy (if Tandem Trunk Queuing service is set, the service is
activated).
20. After the second announcement is sent out, whether to allow dialing of the next number or to release the
call automatically can be selected on a system basis.
21. The announcement can be either 16, 32, or 60 seconds, depending on the key setting of the announcement
trunk (PA-4DATA). The announcement trunk should always be connected in single connection. 
22. When the caller attempts trunk call origination by this service and encounters restriction, the class change
service via authorization code dialing is not available.
23. The following services are denied toward a line or trunk involved in Serial Call:
CALL FORWARDING - ALL CALLS [C-5]
CALL FORWARDING - BUSY LINE [C-2]
CALL FORWARDING - DON’T ANSWER [C-3]
CALL PICKUP - DIRECT [C-30]
CALL PICKUP - GROUP [C-7]
CALL WAITING - ORIGINATING [C-31]
CALL WAITING - TERMINATING [C-12]
STATION HUNTING - CIRCULAR [S-7]
STATION HUNTING - SECRETARIAL [S-8]
STATION HUNTING - TERMINAL [S-9]
24. When the called station via Serial Call is busy, STEP CALL [S-13] is not available.
25. When the call is extended to a trunk, the call is charged to the incoming trunk (the caller). 
						

							NEAX2400 IMX Business Features and Specifications
Page 514NDA-24221, Issue 3
S-129 SMDR Output Expansion - ANI/CPN
S-129  SMDR Output Expansion - ANI/CPN
General Description
This feature expands SMDR information output, by which calling numbers from Central Office may be output to
the expanded area.
Operating Procedure
No manual operation is required.
Service Conditions
1. When the expanded area information is used, SMDR equipment must corresponds to the expanded output
format.
2. Users may assign 24 kinds of output information (maximum 240 bytes) combined as they like.
Information exceeding 240 bytes is not output from its head.
When current information + ANI information (A) + new information D + F + P:
Output information:
No output information:
3. Multi output and dual output are available. (If dual output is assigned, it is possible that the formats are
different at each port depending on system data [e.g. expanded output is available/not available]).
4. Regarding the ANI information identifier, the numbers 0, 2, 3, 4 and 5 are output only when the
information is sent from Central Office.
S
T
XO! KH
/
I
/
JCCIS 
OFFICE 
CODEAUTH 
CODEAID ANI 
NO.DNEW 
INFO. 
DFNEW 
INFO. 
FPNEW 
INFO. 
PZE
T
X
240 bytes
Exceeding Info.
S
T
XO! KH
/
I
/
JCCIS 
OFFICE 
CODEAUTH 
CODEAID ANI 
NO.DNEW 
INFO. 
DFNEW 
INFO. 
FZE
T
X
NEW 
INFO. 
P P
Exceeding information is not output. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 515
SMDR Output Expansion - ANI/CPN S-129
Service Conditions (cont’d)
Note:Meanings of ANI information identifier numbers:
0 = Not output
1 = Display
2 = Not display
3 = Not provide service
4 = Outgoing C.O. call
5 = Service Condition
5. When an office receiving a calling number from Central Office extends the call to another office through
CCIS and charging is performed at the extended office, the maximum calling number is 16 digits.
However, only when ANI information identifier sent from Central Office is 1 (Display), the calling
number is output.
6. This service is available when using CENTRALIZED BILLING – CCIS [C-55]. (A main office receives
charging information from its remote office as it received. However, if the main office makes this service
invalid, the information in the expanded area is not output but transferred by using current identifiers
(outgoing: KA, incoming: KE, both station: KB).
The following is the table showing relationship between a main office and a remote office when remote
charging is established.
7. This service is not supported in offices performing remote charging.
Transfer Format From A Remote Office
/ 
Output Format From A Main Office Current Transfer FormatExpanded Transfer Format By 
Activating This Service
This service is activated.Expanded area information 
ID is output only. 
Information is output in 
space.Information is output in the 
expanded format according to 
system data of the main office. In 
case information required to be 
output at a main office is not in the 
transfer format from a remote 
office, information is output same 
as the current transfer format.
This service is not activated.Information is output in the 
current format.Information in the expanded area is 
not output but transferred in the 
current format. 
						

							NEAX2400 IMX Business Features and Specifications
Page 516NDA-24221, Issue 3
T-1 Tandem Switching of TIE Trunks - 2/4-Wire
T-1  Tandem Switching of TIE Trunks - 2/4-Wire
General Description
This feature allows trunk-to-trunk connections through the switching system, 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 PBX. 
3. Dial another TIE trunk access code. 
Or
1. Dial the Central Office access code; receive dial tone from the other distant PBX or local Central Office.
2. Dial an extension number of the distant PBX.
Or
1. Dial the Central Office exchange number (local or toll).
Service Conditions
1. When using a 2-wire application, there may be an appreciable decrease in transmission decibel levels.
2. When using a 4-wire application, a TLT circuit card is required for every four TIE Lines. This circuit card
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 will receive busy tone.
4. Each incoming TIE trunk may have various restrictions for TIE-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.
8. This feature can also be activated when using a trunk in the remote node via FCCS link. For more detailed
information, see the NEAX2400 IMX Fusion Network System Manual.
Interactions
1. The connection described is a user outside the system connected to an incoming TIE Line to an outgoing
TIE Line. TRUNK-TO-TRUNK CONNECTION [T-10] is established by either the Attendant Console or
a user and is connected to two outgoing trunks. 
2. TOLL DENIAL [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.
3. Incoming dial repeating TIE trunks (second dial tone) can connect to the following types of outgoing
trunks:
a.) Dial repeating TIE trunk (second dial tone)
b.) Senderized TIE trunk
c.) CO trunk
d.) FX trunk
e.) WATS trunk 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 517
Tandem Switching of TIE Trunks - 2/4-Wire T-1
Interactions (cont’d)
f.) CCSA trunk
4. STATION MESSAGE DETAIL RECORDING (SMDR) [S-10]: On Tandem Connections, the incoming
TIE Trunk group route number and outgoing trunk number are recorded.
5. 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 IMX Business Features and Specifications
Page 518NDA-24221, Issue 3
T-2 Three-Way Calling
T-2 Three-Way Calling
General Description
This feature enables any user to add another party to an existing connection, establishing a three-way conference.
Even if the additional D
term user holds the call, THREE-WAY CALLING may be established. (This service is called
Consultation Hold.)
Operating Procedure
Procedure 1:
1. Press switch hook; first party is placed on Consultation Hold; receive special dial tone.
2. Dial the desired number; receive answer.
3. Announce the conference and press switch hook again.
4. The THREE-WAY CALLING is now established.
Procedure 2: 
1. While connected with the first party, press the switch hook; receive special dial tone. The first party is
placed on hold.
2. Dial the second party (D
term); receive ring back tone.
3. The second party answers; the CONSULTATION HOLD - ALL CALLS state has been entered.
4. The second party presses the HOLD key and the call in progress is held.
5. Press the switch hook and return to the original call.
6. The second party or another D
term station in the same Multi Line group answers the held call.
7. THREE-WAY CALLING is established.
Service Conditions
1. The originating party may hang up at any time. The remaining two parties will not be disconnected.
2. This feature may be activated during any call.
3. Any combination of parties (internal or external) may be included in a three-way call.
4. The maximum number of simultaneous three-way calls depends on the quantity of digital conference
trunks within the system. One digital conference trunk circuit card can handle 8 simultaneous three-way
calls.
5. The THREE-WAY CALLING feature is not restricted by the line class of service assigned to the user’s
line; thus, a fully restricted station can transfer a call to another station or the Attendant
When the Consultation Hold service is used:
1. Service restriction class of stations may be assigned at each station.
2. This service is not available when THREE-WAY CALLING has been established.
3. After the originating party presses the switch hook, the station can only go on-hook and press the switch
hook. The party in conversation can only operate on-hook.
4. This service is not available when the transferred call is held by CALL HOLD and so on.
5. When the additional station answers the held call, whether to send Override Tone or not 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
NDA-24221, Issue 3
Page 519
Three-Way Calling T-2
Interactions
1. A station in an established three-way connection cannot flash the switch hook to activate a feature. The
flash disconnects the last party connected. 
2. All three-way calls are protected by privacy. No more than three ports can be bridged together at one time,
unless PRIVACY RELEASE [P-18] is being used. 
3. If a three-way call includes two trunks and the station hangs up, the trunks will release, unless the trunks
are allowed TRUNK-TO-TRUNK CONNECTION [T-10] via the ARRC command, ARI-D-RES. 
						

							NEAX2400 IMX Business Features and Specifications
Page 520NDA-24221, Issue 3
T-2D Three-Way Calling - Dterm
T-2D Three-Way Calling - Dterm
General Description
This feature enables a Dterm user to establish a three-way conference by connecting an additional party to an already
existing conversation.
Even if the additional D
term user holds the call (Consultation Hold), THREE-WAY CALLING may be established.
Operating Procedure
Procedure 1: 
1. Press the TRANSFER key; receive special dial tone; the original party is placed on hold.
2. Dial the desired number; receive answer.
3. Announce the conference and press the CONF key. 
4. THREE-WAY CALLING is now established. The LCD displays: 
Procedure 2: (Hold on Consultation Hold.)
1. While connected with the first party, press the TRANSFER key (Dterm); receive special dial tone. The first
party is placed on hold.
2. Dial the second party (D
term); receive ringback tone.
3. The second party answers; the CONSULTATION HOLD - ALL CALLS state has been entered.
4. The second party presses the HOLD key (D
term) and the call in progress is held.
5. Press the CONF key and return to the original call.
6. The second party or another D
term station in the same Multi Line group answers the held call.
7. THREE-WAY CALLING is established.
Service Conditions 
1. The originating party may hang up at any time. The other two parties will not be disconnected if assigned
as such in system programming.
2. This feature may be activated during any call that does not include the Attendant Console.
3. Any combination of parties (internal or external) may be included in a three-way call.
4. The maximum number of simultaneous three-way calls is dependent on the quantity of Digital Conference
Trunks within the system. (Conference function is included in the TSW and MUX circuit card.) One
Digital Conference Trunk circuit card can handle eight simultaneous three-way calls.
5. The THREE-WAY CALLING feature is not restricted by the line class of service assigned to the user’s
line; thus, a fully restricted station can transfer a call to another station or the Attendant.
When the Consultation Hold service is used:
1. Service restriction class of stations may be assigned at each station.
2. This service is not available when THREE-WAY CALLING has been established.
3. After the originating party presses the CONF key, the station can only go on-hook and press the
TRANSFER key. The party in conversation can only operate on-hook.
4. This service is not available when the transferred call is held by CALL HOLD and so on.CONF
(Time Display)