NEC Neax 2400 Ipx Isdn Feature Programming Manual

NDA-24305 CHAPTER 6
Page 243
Revision 1.0
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...

CHAPTER 6 NDA-24305
Pag e 2 44
Revision 1.0
CALL COMPLETION ON NO REPLY (CCNR)
(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...

NDA-24305 CHAPTER 6
Page 245
Revision 1.0
CALL COMPLETION ON NO REPLY (CCNR)
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...

CHAPTER 6 NDA-24305
Pag e 2 46
Revision 1.0
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....

NDA-24305 CHAPTER 6
Page 247
Revision 1.0
CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
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]...

CHAPTER 6 NDA-24305
Pag e 2 48
Revision 1.0
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...

NDA-24305 CHAPTER 6
Page 249
Revision 1.0
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...

CHAPTER 6 NDA-24305
Pag e 2 50
Revision 1.0
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...

NDA-24305 CHAPTER 6
Page 251
Revision 1.0
CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
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...

CHAPTER 6 NDA-24305
Pag e 2 52
Revision 1.0
CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
(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...