NEC Neax 2400 Ipx Isdn Feature Programming Manual

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CALL COMPLETION ON NO REPLY (CCNR)
19. The conditions of alternate routing are as follows.
(a) If the data link fault occurs when the station is operating to set CCNR, the message for service set is
sent using alternate route providing that the interface is Q-SIG/IS-11572.
(b) The same route is used for sending service set message and recall (the other route cannot be used).
Therefore, recall is not completed since all trunks (B-channel) of the corresponding route are busy, and
the system processes the call as follows.
 All B-channel trunks at the system of an calling station are busy:
cancel CCNR and send the busy tone to the calling station.
 All B-channel trunks at the mediate system are busy: 
send the message of CCNR recall fault to the calling station and the message of CCNR cancel to
the called station.
20. The description below are interactions between CCNR and Call Forwarding service (All Calls, Busy Line,
Don’t Answer).
(a) When setting CCNR to the station which is set C.F. service, the time of setting CCNR decides whether
the service is set or not.
Note 1:When the calling station recalls the station which is set CCNR service after answering CCNR recall,
No Answer Timer time out is effective. If the timer expires, the recall is forwarded to the destination.
Note 2:The station to be set CCNR is not changed if C.F. - Don’t Answer service is canceled after CCNR
service set.
C.F. - All Calls C.F. - Busy Line C.F. - Don’t Answer
C.F. is incomplete
C.F. is not applicable (the condition 
for making C.F. complete is not agreed)
(before) C.F. is activated- CCNR is set to the for-
warding station (called 
station) CCNR is set to the for-
warding station (called 
station) 
Note 1, Note 2
(after) C.F. is complete Not Available Not Available CCNR is set to the for-
warding station (called 
station) 
Note 1, Note 2 
						

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(b) When Call Forwarding - All Calls/Busy Line/Don’t Answer is set on a calling station, the system
recalls the calling party.
(c) When a called station is set Call Forwarding - All Calls/Busy Line/Don’t Answer after CCBS service
is set to the station, a calling station recalls the called station (forwarding station). As for a called
station to be set Call Forwarding - Don’t Answer, the destination station is recalled from the calling
station if No Answer Timer expires.
21. When the called station is Station Hunting Group member, CCNR is set to the terminated station. If the
terminated station is busy, CCNR cannot be set.
22. Sub Address-Addressing is not used with CCNR.
CCNR call is terminated to Station A (the call is not forwarded to Station D).
C.F. service is set from Station A
Station D
Station AStation C
Station B
CCNR is set from Station A.
Recall for CCNR IS-11572 IS-11572
LEGEND
: direction of CCNR call : direction of C.F. service 
						

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4. Programming
Assign the basic data for establishing the Q-SIG or the IS-11572 (available to operate CCNR conforming to
IS-13870 since Series 7400 Release 8 software) line referring to “IS-11572 (Layer 3 specifications for inter-
PBX signalling protocol)” or “Q-SIG Circuit Switched Basic Call-ETSI Version” in this chapter.   
STEP 1: ASYD -System Data 1, Index 17, bit 0. Hooking service while hearing Ring Back Tone is available
for single line stations? 0/1 = No/Yes. 
System Data 1, Index 71, bits 0 through 3. Assign the timer value of Cancel Timer for
CCNR.
System Data 1, Index 71, bit 7. Automatic Cancel of CCNR. 0/1 = Out/In Service.
System Data 2, Index 4, bit 0. CCNR and OG Trunk Queuing Access Code. 0/1 =
Separate/Common.
System Data 3, Index 7. Assign Ringer Pattern for Recalling.
STEP 2: ANPD -Reserve a number level for setting/canceling CCNR.
STEP 3: ASPA -Assign an access code for setting/canceling CCNR.
 For setting CCNR
CI = H
SRV = SSC
SID = 3 (Call Back; Entry)
 For canceling CCNR
CI = N
SRV = SSC
SID = 6 (Call Back; Cancel)
STEP 4: Assign Service Feature Class that allows SFI = 2 (Call Back) to the stations allowed this service. 
						

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CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
C-148 CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
1. General Description
This feature allows an Inter-Office Call Back when the calling station and the called station respectively belong
to a different PBX in a Q-SIG network. This feature conforms to ETS 300 366. 
Since the Series 7400 software program, CCBS conforming to IS-13870 is also available.
2. Operating Procedure
To set CCBS:
[When using the access code]
1. Station A and Station B are in station-to-station connection.
2. Station C dials the number for Station B; Station C receives Busy Tone.
3. Station C presses the switchhook or dials the last digit of the number for Station B; Station C receives
Special Dial Tone.
Station A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/Station C IS-11572 IS-11572
Station CStation A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/BT
IS-11572 IS-11572
Station CStation A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/SPDT
IS-11572 IS-11572 
						

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4. Station C dials the access code for CCBS; Station C receives Service Set Tone and hangs up.
5. Both Stations A and B hang up (i.e. Station B becomes idle); Station C rings.
6. Station C answers and receives Ring Back Tone; Station B rings.
7. Station B answers; Stations C and B are connected.
When using line/feature key:
Station CStation A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/SST
IS-11572 IS-11572
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/RG
Station A
Station B
Station CIS-11572 IS-11572
Station C
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/ RBT
Station A
Station B
RG
IS-11572 IS-11572
Station C
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/
Station A
IS-11572 IS-11572 
						

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CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
1. Station A and Station B are in station-to-station connection.
2. Station C dials the number for Station B; Station C receives Busy Tone.
3. Station C presses the feature key for CCBS; Station C receives Service Set Tone and hangs up.
Station A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/
Station C
IS-11572 IS-11572
Station C
Station A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/BT
IS-11572 IS-11572
Station C
Station A
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/SST
IS-11572 IS-11572 
						

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CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
4. Both stations A and B hang up (i.e. Station B becomes idle); Station C rings.
5. Station C answers and receives Ring Back Tone; Station B rings.
6. Station B answers; Station B and Station C are connected.
To cancel CCBS:
1. Station A lifts the handset while the CCBS service is set; Station A hears Dial Tone.
2. Station A dials the access code or presses the function key for canceling CCBS; Station A hears Service Set
To n e .
3. Station A replaces the handset.
Note:Operating procedure varies depending on the specifications of the station since ETS 300 306/IS-13870
protocol does not regulate.
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/RG
Station A
Station BStation C
IS-11572 IS-11572
Station C
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/ RBT
Station A
Station B
RG
IS-11572IS-11572
Station C
Station B
[Node A] [Node B] [Node C]Q-SIG/ Q-SIG/ Station A
IS-11572IS-11572 
						

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CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
3. Service Conditions
1. CCBS is available when an end-to-end link is established via Q-SIG interface (ETS 300 172).
2. The transfer rate is 64 kbps. Bearer Capabilities are as follows:
– Speech
– 3.1 kHz audio
– 7 kHz audio
3. Multiple CCBS features cannot be set for a single station.
4. CCBS is available for the D
term or an analog station (Attendant Console and ISDN terminal cannot be used).
5. When the called station number is Pilot Number of Station Hunting Group, CCBS is set to the terminated
station.
6. When Call Forwarding – All Calls is activated at the called station, CCBS is set to the forwarded station.
7. When Call Forwarding – Busy Line is activated at the called station and the forwarded station is also busy,
CCBS is set to the called station.
8. CCBS is not available while one of the following features is activated:
 Call Back
 Call Back – CCIS
 Call Waiting
 Call Hold
 ATT Camp On (Called side)
9. CCBS is canceled when:
 Cancel Timer for CCBS expires.
 All the trunks for recalling are busy.
 The system recalls the calling station in lockout or make busy state.
 The called station is abnormally released (ex. the handset remains off-hook) and turned into lockout
state.
10. CCBS conforming to IS-13870 is available when an end-to-end link is established via IS-11572 interface or
when the tandem connection of Q-SIG and IS-11572 link is established (Not available for the signaling
method other than Q-SIG and IS-11572).
11. The transfer rate is 64 kbps. Bearer Capabilities are as follows:
- Speech
- 3.1 kHz audio
Note:For more  details about the C CBS feature regulated by protocol, see the corresponding manual.
12. CCBS is available for the D
term or an analog station (i.e. not available for PS terminal, Attendant Console
nor ISDN terminal).  
13. CCBS can be set only when the called station is in two-party connection or busy condition and the call is
not completed for the called user busy (fault cause is #17). 
						

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14. CCBS is not available while the calling and called station is in one of the following conditions:
(a) Calling Station
 the station sets Call Back or Call Back is set to the station
 the station sets Call Back-CCIS or Call Back-CCIS is set to the station
 the station uses Call Hold
 the station sets Call Waiting service
 the station is restricted this feature
(b) Called Station
 the station is in lockout state or make-busy state.
 the station sets Call Back or Call Back is set to the station
 the station sets Call Back-CCIS or Call Back-CCIS is set to the station
 the station uses Call Hold
 the station sets Call Forwarding-All Calls/Busy Line (providing that these C.F. services are
complete)
 Attendant Camp on with Tone Indication is set to the station 
 the station sets Call Waiting service
 the station is restricted this feature
15. CCBS is canceled when: 
(a) Automatic Cancel Timer for CCNR expires (ASYD, System data 1, Index 71, b0-b3 decides the timer
and b7 makes the timer effective). 
* Automatic Cancel for Call Back is applied to this feature also.
(b) No Answer Timer (calling station does not answer the CCBS recall) expires (ASYD, System Data 1,
Index 139. Default data is 30 seconds).
(c) The system recalls the calling station in lockout or make-busy state (CCNR is effective when the
calling station is called after lockout state or make-busy state is recovered). 
(d) All trunks for recalling are busy at the time of recall.
(e) The called station is abnormally released (ex. The handset remains off-hook) and turned into lockout
state.
(f) The calling station (operating station) is restricted incoming calls at the time of recall.
16. The single station cannot set multiple CCBS services and multiple CCBS services cannot be set to the single
station.  
A maximum number of CCBS to be set simultaneously per LP = 
480 – (no. of ISDN call to be handled + no. of already set CCBS and CCNR service 
Note)
Note:Both CCBS and CCNR services conforming to ETS300 366 and IS-13870.
17. When the called station becomes idle while the calling station is in conversation, the system recalls the
calling station after the conversation ends. 
18. Sub Address-Addressing is not used with CCBS.
19. If the fault occurs at IS-11572 data link when;
(a) If the fault occurs when the calling station is operating to set CCBS, CCBS service cannot be set.
(b) If the fault occurs when the calling station is operating to cancel CCBS, CCBS is canceled at the side
of operating station but not canceled at the side of called station since the cancel message is not sent
to the station.  
						

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(c) If the fault occurs when informing the calling station that the called station becomes idle, CCBS is
canceled at the side of station to be set, but not canceled at the side of calling station since the message
is not sent to the station.
(d) If the fault occurs when the calling station answers the recall (CCBS call), CCBS is canceled at the
side of the calling station but not canceled at the side of the called station since the message is not sent
to the station.
20. The conditions of alternate routing are as follows.
(a) If the data link fault occurs when the station is operating to set CCBS, the message for service set is
sent using alternate route providing that the interface is Q-SIG/IS-11572.
(b) The same route is used for sending service set message and recall (the other route cannot be used).
Therefore, recall is not completed since all trunks (B-channel) of the corresponding route are busy, the
system processes the call as follows.
 All B-channel trunks at the system of an calling station are busy:
cancel CCBS and send the busy tone to the calling station.
 All B-channel trunks at the mediate system are busy :
send the message of CCBS recall fault to the calling station and the message of CCBS cancel to the
called station.
21. The description below are interactions between CCBS and Call Forwarding service (All Calls, Busy Line,
Don’t Answer).
(a) When setting CCBS to the station which is set C.F. service, the time of setting CCBS decides whether
the service is set or not.
Note 1:When the calling station recalls the station which is set CCBS service after answering CCBS recall, No
Answer Timer time out is effective. If the timer expires, the recall is forwarded to the destination.
Note 2:The station to be set CCBS is not changed after CCBS service  set  even if C.F. - Don’t Answer service
is canceled.
(b) When Call Forwarding - All Calls/Busy Line/Don’t Answer is set on a calling station, the system
recalls the calling party.
(c) When a called station is set Call Forwarding - All Calls/Busy Line/Don’t Answer after CCBS service
is set to the station, a calling station recalls the called station (forwarding station). As for a called
station to be set Call Forwarding - Don’t Answer, the destination station is recalled from the calling
station if No Answer Timer expires.
4. Programming
Assign the basic data for establishing the Q-SIG or the IS-11572 (since Series 7400 software) line referring to
“IS-11572 (Layer 3 specifications for inter-PBX signaling protocol)” or “Q-SIG Circuit Switched Basic Call-
ETSI Version” in this chapter.
C.F. - All Calls C.F. - Busy Line C.F. - Don’t Answer
C.F. is incomplete
C.F. is not applicable (the condition
for making C.F. complete is not agreed)
(before) C.F. is activated- - CCBS is set to the forward-
ing station (called station)
Note 1, Note 2
(after) C.F. is complete Not Available Not Available -