NEC Neax 2400 Imx Business Features And Specifications

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 1
Attendant Camp-On with Tone Indication A-1
A-1  Attendant Camp-On with Tone Indication
General Description
This feature permits the Attendant, when a desired station is busy, to hold an incoming call in a special waiting
mode. The Attendant sends a distinctive Camp-On Tone Indication to the busy station. When that station becomes
idle, it is automatically rung and connected to the waiting trunk party upon answering.
Operating Procedure
To activate Camp-On from the ATTENDANT CONSOLE [A-3]:
1. ATTENDANT CONSOLE [A-3] indicates incoming call.
2. Press the ANSWER or INCOMING CALL IDENTIFICATION [I-2] key.
3. Dial the busy telephone number; receive busy tone.
4. Press the RELEASE key; warning tone is sent and Camp-On is set.
To cancel Camp-On from the ATTENDANT CONSOLE [A-3]:
1. Press the loop key corresponding to held call; connect to the waiting trunk party.
2. Press the DEST key; hear busy tone.
3. Press the CANCEL key, automatically returns to the trunk party.
Service Conditions
1. Camp-On is controlled entirely from the ATTENDANT CONSOLE [A-3].
2. Only one incoming call may be camped-on to a particular station at any given time. Multiple Camp-On is
not allowed.
3. Calls that remain camped-on for longer than the predetermined timing will initiate AUTOMATIC
RECALL [A-8]. See VARIABLE TIMING PARAMETERS [V-1].
4. The camped-on station can answer a Camp-On call using the CALL HOLD [C-6] feature if permitted via
CLASS OF SERVICE - INDIVIDUAL [C-15].
5. When Camp-On is denied, the Attendant may place the incoming call into a hold mode by pressing the
HOLD key.
6. The maximum number of simultaneous Camp-On’s per ATTENDANT CONSOLE [A-3] is 6. If
ATTENDANT LOOP RELEASE [A-6] is provided, the maximum number is 12.
7. Camp-On may be denied if the busy station is:
a.) dialing or in the LINE LOCKOUT [L-3] mode.
b.) listening to tone.
c.) being rung.
d.) already camped-on by a previous call.
e.) protected from Camp-On by CLASS OF SERVICE - INDIVIDUAL [C-15].
f.) protected by DATA LINE SECURITY [D-12]. ASFC SFI 11 = 0.
g.) being connected to an Attendant loop.
h.) activating any conflicting feature, such as:
ATTENDANT OVERRIDE [A-7]
BOSS-SECRETARY OVERRIDE -  D
term[B-5D]
BUSY VERIFICATION [B-3]
CALL BACK [C-1]
CALL HOLD [C-6] 
CALL TRANSFER [C-10, C-11, C-11D] 
						

							NEAX2400 IMX Business Features and Specifications
Page 2NDA-24221, Issue 3
A-1 Attendant Camp-On with Tone Indication
Service Conditions (cont’d)
CALL WAITING - ORIGINATING [C-31]
CALL WAITING - TERMINATING [C-12]
CONSULTATION HOLD - ALL CALLS [C-17, C-17D]
DATA LINE SECURITY [D-12]
DATA PRIVACY ON DEMAND [D-17]
DIAL ACCESS TO ATTENDANT [D-2]
EXCLUSIVE HOLD - D
term[E-4D]
EXECUTIVE RIGHT-OF-WAY [E-1, E1D]
NON-EXCLUSIVE HOLD - D
term[N-7D]
OFF-HOOK QUEUING [O-7]
OUTGOING TRUNK QUEUING [O-2, O-2D]
PRIVACY - D
term[P-14D]
PRIVACY RELEASE [P-18]
THREE-WAY CALLING [T-2, T-2D]
VOICE CALL - D
term[V-2D]
Note:In each of the above instances, the Attendant will receive reorder tone.
8. This feature can be denied on DICTATION ACCESS [D-3] and PAGING ACCESS [P-1] connections by
assigned office data.
9. The ATTENDANT CAMP-ON WITH TONE INDICATION feature is limited to one call waiting per
station line. The check to allow call waiting limits this feature to calls on a steady 2-party talking state with
a trunk or another station. There is no limit to the number of lines to which this feature can be assigned.
10. CALL HOLD [C-6]: Attendant Camp-On is denied to a station that has a call on hold or to a station that
has been placed on hold.
11. Any restriction that prevents a call from terminating directly at a station also prevents a call from waiting
at that station.
12. DATA LINE SECURITY [D-12]: Attendant Camp-On is denied to a station with this restriction.
13. STATION HUNTING [S-7, 8, 9]: This feature takes precedence over Attendant Camp-On. If all stations
in the hunt group are busy, the call will wait at the called station.
14. LINE LOCKOUT [L-3]: A call is not allowed to wait on a line that has been locked out.
15. ATTENDANT CAMP-ON WITH TONE INDICATION is denied if the called station has activated
CALL BACK [C-1], OUTGOING TRUNK QUEUING [O-2] or has another call waiting.
16. BUSY VERIFICATION [B-3]: This feature is not allowed when a call is waiting. Attendant Camp-On is
denied to a station in a 3-way call as a result of busy station verification.
17. CALL BACK [C-1]: Camp-On is denied if another station has activated the CALL BACK [C-1] feature
toward the station.
18. CALL FORWARDING [C-2, 3, 5]: When Call Forwarding is in effect, the forwarding operation occurs
before any call waiting is allowed. Once a call has been forwarded, the call may wait at the new station if
call waiting is allowed.
19. HOT LINE [H-1]: Attendant Camp-On is allowed toward the Hot Line.
20. THREE-WAY CALLING [T-2]: Calls are not allowed to wait on any station involved in a Three-Way
Call.
21. DATA PRIVACY ON DEMAND [D-17]: Attendant Camp-On is denied to a user who has activated Data
Privacy On Demand. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 3
Attendant Camp-On with Tone Indication A-1
Interactions
1. System Data 2, Index 2, Bit 5 will enable ATTENDANT LOOP RELEASE [A-6], which allows 12 calls
to be camped-on to stations by Attendant Console.
2. The Attendant Console must first be provided.
3. Route Restrictions disallowing a call to terminate at a station will also disallow ATTENDANT CAMP-
ON.
4. STATION HUNTING [S-7, 8, 9] and UNIFORM CALL DISTRIBUTION [U-1] take precedence over
ATTENDANT CAMP-ON WITH TONE INDICATION. If all stations in the Station Hunting group are
busy, the call will wait at the called station.
5. HOTLINE [H-1]: ATTENDANT CAMP-ON is allowed toward the Hotline.
6. TIE LINE ACCESS [T-3]: ATTENDANT CAMP-ON is denied to a station over a TIE Line (distant end).
7. ATTENDANT CAMP-ON WITH TONE INDICATION and SERIAL CALL [S-15] are mutually
exclusive.
8. ATTENDANT CAMP-ON WITH TONE INDICATION is usually denied to a station connected to Value-
Added Modules (VAM).
9. ATTENDANT CAMP-ON WITH TONE INDICATION is applicable only with incoming C.O. or TIE
Line calls to a busy station. Attendant-assisted station-to-station calls cannot be camped-on. 
						

							NEAX2400 IMX Business Features and Specifications
Page 4NDA-24221, Issue 3
A-2 Attendant-Controlled Conference
A-2 Attendant-Controlled Conference
General Description
This feature permits the Attendant to establish a conference among as many as eight parties. The conferees may
consist of any combination of stations and/or trunks, whether inside or outside parties.
Operating Procedure
To activate ATTENDANT CONTROLLED CONFERENCE:
1. Station calls Attendant to request conference.
2. Attendant connects a party to one of the assigned line circuits.
3. Attendant sequentially calls all desired parties and connects them to the other line circuits on the
conference.
4. Once all parties are connected, the conference leader with a push-button telephone may dial digit “0” to
block additional participants, thereby assuring privacy.
5. If the conference leader dials the digit “#”, all conferees will be disconnected. Otherwise, the conference
is terminated only after all parties have hung up.
6. To release from a conference circuit individually, a user must hang up. The remaining conferees may
continue without interruption.
Service Conditions
1. Conference units are designed to provide adequate amplification, but the condition of the Central Office
connections will affect transmission.
2. Conference extension numbers should be placed in a STATION HUNTING - TERMINAL [S-9] group
with only the pilot number being published.
3. If the conference leader connected to the conference unit dials digit “#” during the course of the
conference, all conferees will be disconnected.
4. The conference leader with a push-button telephone must be connected to level “0” of the conference
circuit.
5. Override services such as BUSY VERIFICATION [B-3], ATTENDANT OVERRIDE [A-7] or
EXECUTIVE Right-of-Way [E-1] are denied on conference call.
6. Additional hardware is required to implement this feature.
Interactions
The Attendant Console must first be provided. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 5
Attendant Console A-3
A-3 Attendant Console
General Description
The ATTENDANT CONSOLE operates on a switched loop basis. Six Attendant loops terminate at each console
via the associated position circuit. The Attendant can answer, originate, hold, extend and re-enter calls through each
loop. The number of calls may be effectively increased to 12 through use of the ATTENDANT LOOP RELEASE
[A-6] feature.
Operating Procedure
Refer to the description of each service feature related to Attendant Console.
Service Conditions
1. Each ATTENDANT CONSOLE is equipped with dual handset jacks, one on either side. For training
purposes, both jacks may be used simultaneously. For normal operation, the Attendant may choose the
most convenient side.
Note:A drop in volume may be noticed while a second handset/headset is connected.
2. A console switched loop may receive a second call immediately upon release of the first, regardless of
whether or not the call has been answered by a station when using the ATTENDANT LOOP RELEASE
[A-6] feature.
3. A maximum of 4 consoles per PIM can be provided.
4. The maximum number of consoles allowed per system is:
1 IMG System: 16
4 IMG System: 60
IMX-U System: 60
5. The ATTENDANT CONSOLE is equipped with a digital time display.
6. The ATTENDANT CONSOLE is equipped with a numerical call waiting display.
7. When answering a CALL FORWARDING [C-2, 3, 5, 25] call, the Attendant can identify the called
telephone number on display area instead of the trunk number by assigned System Data.
8. The Desk Console for Business System can display a maximum of 24-digit calling/called station number
(telephone number) on the LCD. In addition, the calling number of Caller ID service can be displayed.
9. The Desk Console can display 8-bit ASCII characters.
10. Name Display is available when Name Display service is available for the D
term. The content of the name
display is the same as that of the Dterm.
11. The maximum number of digits for the Name Display are as shown below:
 16 for the name assigned by the MAT
 15 for the calling name sent from the Central Office
12. When the calling number is not received, the route/trunk number or the Central Office Code (COC) is
displayed instead.
13. The Desk Console and the current Attendant Console can be used together in a system. However, the
Attendant Console can display a maximum of 24 digit telephone numbers and Caller ID information is not
displayed.
14. The data setting of the station number display pattern for the Attendant Console (SYS1, INDEX 82) is
unavailable for the Desk Console. 
						

							NEAX2400 IMX Business Features and Specifications
Page 6NDA-24221, Issue 3
A-3 Attendant Console
Service Conditions (cont’d)
15. A PA-CS33 circuit card is required. The switch setting for PA-CS33 (ATI) is shown below:
16. The Attendant Console must be accommodated in one LN only when used in the IMX-U system.
17. A terminating node (FPC) must be assigned in the FCCS network.
18. Identical system data related to Attendant Console should be programmed at all nodes.
19. A different destination for C.O. incoming call (ring down) cannot be set at each tenant group.
Interactions
There are no known interactions.
Switch NameSetting
SW161 OFF (fixed)
2 ON (fixed) 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 7
Attendant Keypad A-4
A-4 Attendant Keypad
General Description
This feature permits the Attendant to dial all calls from the ATTENDANT CONSOLE [A-3] via a push-button PAD.
Operating Procedure
Refer to the description of each service feature related to Attendant Console. 
Service Conditions
1. Whether the NEAX2400 IMX is equipped with DP or DTMF trunk lines, signals from the ATTENDANT
KEY PAD will be converted.
2. Via the key pad, the Attendant may originate calls, process incoming calls, and activate various service
features. They are as follows:
a.) Pushbutton Calling [P-4]
b.) Pushbutton Calling - Attendant only [P-5]
c.) Rotary Dial Calling [R-5]
3. The ATTENDANT KEY PAD generates DC signals, which in turn are converted to either DP or DTMF
signals by the Attendant interface circuit.
4. The key pad consists of twelve (12) keys used to generate digits 0 through 9, plus the “*” and “#” keys. 
						

							NEAX2400 IMX Business Features and Specifications
Page 8NDA-24221, Issue 3
A-5 Attendant Lockout
A-5 Attendant Lockout
General Description
This feature denies an Attendant the ability to re-enter an established trunk/station connection without being recalled
by the station.
Operating Procedure
No manual operation is required once this feature has been programmed into system data.
Service Conditions
1. This feature is, by definition, mutually exclusive with:
ATTENDANT OVERRIDE [A-7]
BUSY VERIFICATION [B-3]
2. Lockout is inoperative on TRUNK-TO-TRUNK CONNECTION [T-10] when the release signal is not
provided from the distant end.
3. Lockout is not used unless the feature is provided which gives 2-party hold capability. Without this
capability, the completed call is removed from the ATTENDANT CONSOLE [A-3] loop, so the
Attendant cannot reenter for assistance or any other purpose.
Interactions
1. ATTENDANT OVERRIDE [A-7]: In those cases where answer supervision is returned on TRUNK-TO-
TRUNK CONNECTIONS [T-10], the Attendant can override the busy condition by using the
ATTENDANT OVERRIDE [A-7] feature.
2. TRUNK-TO-TRUNK CONNECTION [T-10]: Privacy is automatically disabled for TRUNK-TO-
TRUNK calls, if the release signal is not provided from the distant end.
3. SPLITTING [S-4]: The Privacy feature works with the SPLITTING [S-4] feature to cause automatic
splitting.
4. Switched Loop Operation: Call processing is modified so that pressing a loop key does not cause the
Attendant to be bridged on an established call unless the Attendant is recalled. An exception is a TRUNK-
TO-TRUNK CONNECTION [T-10] when the release signal is not provided from the distant end.
5. ATTENDANT-CONTROLLED CONFERENCE [A-2]: When the Attendant reenters a conference
connection to answer a recall, only the Attendant and the recalling station are connected together. 
						

							NEAX2400 IMX Business Features and Specifications
NDA-24221, Issue 3
Page 9
Attendant Loop Release A-6
A-6 Attendant Loop Release
General Description
This feature allows an ATTENDANT CONSOLE loop to become available for a second call as soon as the
Attendant has directed the first call to a station, even if that station does not answer.
Operating Procedure
1. ATTENDANT CONSOLE indicates an incoming call. 
2. Press the ANSWER or INCOMING CALL INDICATION [I-2] key.
3. Dial the desired telephone number; receive ringback tone.
4. Before the station answers, press the RELEASE key.
5. The loop is now available for another call.
Service Conditions
1. Unanswered calls will be routed to the Attendant within the predetermined time via AUTOMATIC
RECALL [A-8]. See VARIABLE TIMING PARAMETERS [V-1].
2. If all Attendant Loop circuits are busy when AUTOMATIC RECALL [A-8] is activated, the system will
automatically scan for an idle Loop every 8 seconds.
3. A maximum of six calls (one per Loop) may be released simultaneously from any single ATTENDANT
CONSOLE.
4. This feature provides the Attendant with the equivalent of 12 switching loops.
5. In a MULTIPLE CONSOLE OPERATION [M-4], the Attendant who initiated the Loop Release will be
recalled.
6. ATTENDANT LOOP RELEASE is only applicable to incoming trunk calls extended to an unanswered
station or busy station (Camped-On).
7. Calls that are held by the Attendant, using the HOLD key, cannot be released from the ATTENDANT
CONSOLE [A-3]. These calls remain on the switched loop until they are either extended by the Attendant
or abandoned by the calling party.
8. After the ATTENDANT LOOP RELEASE is activated, the Attendant cannot interact with the call until
altered by the AUTOMATIC RECALL [A-8] feature.
9. ATTENDANT CAMP-ON: This feature, when active, permits the Attendant to CAMP-ON [A-1] to a
busy called station. Upon ATTENDANT CAMP-ON WITH TONE INDICATION [A-1], the Attendant
may release the call from the ATTENDANT CONSOLE [A-3].
Interactions
1. The Attendant Console must first be provided.
2. ATTENDANT LOOP RELEASE and CALL FORWARDING - DON’T ANSWER [C-3] on calls
extended to a station via the Attendant Console (System Data 2, Index 6, Bit 7) are mutually exclusive.
3. ATTENDANT LOOP RELEASE is only applicable to incoming station or trunk calls extended to an
unanswered station or busy station. See ATTENDANT CAMP-ON WITH TONE INDICATION [A-1].
4. Calls placed on CALL HOLD [C-6] by the Attendant Console are not released from the console. These
calls remain on the loop until they are either extended by the Attendant or abandoned by the calling party.
5. A maximum of six calls per console can be released and stored in the system memory. A seventh call
extended (unanswered/camped-on) will remain in the loop. 
						

							NEAX2400 IMX Business Features and Specifications
Page 10NDA-24221, Issue 3
A-6 Attendant Loop Release
Interactions (cont’d)
6. Calls processed via SERIAL CALL [S-15] are not released from the Attendant Console. These calls
remain in the loop until completion.