NEC Neax 2400 Imx Ccis Features And Specifications

							NEAX2400 IMX CCIS Features and Specifications
Page 126NDA-24222, Issue 3
M-40 Multiple Call Forwarding - All Calls - CCIS
Service Conditions (cont’d)
The Calling party hears busy tone when the forwarding destination number, assigned to the last
intermediate party (intermediate party 2 in the example below), and the calling party number sent from the
calling party are not identical.
10. When Call Forwarding is restricted because the number of times data or the service restriction data, the
call is terminated to the station that is restricted Multiple Call Forwarding - CCIS service.
Example 1: Multiple Call Forwarding - CCIS is restricted because the service has already been activated
the preassigned maximum number of times. A maximum of three times is available for Call Forwarding
through CCIS.
2nd C.F. (All 
Calls/Busy)
1st C.F. (All Calls)
Node ANode B
Intermediate 
Party 1 Calling Party
Busy Tone
Intermediate 
Party 2
.   1st C.F.
2nd C.F.
Calling Party
Intermediate Party
4th C.F. 
UNAVAILABLE3rd C.F.
When the call is forwarded 
by C.F. - A/D - CCIS, the call 
terminates to this station. 
						

							NEAX2400 IMX CCIS Features and Specifications
NDA-24222, Issue 3
Page 127
Multiple Call Forwarding - All Calls - CCIS M-40
Service Conditions (cont’d)
Example 2: Multiple Call Forwarding - CCIS service is restricted because the service is not effective at
the node.
11. Even if Call Forwarding is set from the forwarded station to the forwarding station, the Call Forwarding
service is effective, as shown in the example below:
When Office A selects the number of times for Call Forwarding for 5 times, five times of Call Forwarding
are executed as Call Forwarding 1 to Call Forwarding 2 to Call Forwarding 3 to Call Forwarding 2 to Call
Forwarding 3.
12. The following services set to the forwarded destination are not available with Multiple Call Forwarding -
CCIS services, except when the services below are activated through CCIS link:
CALL FORWARDING - ALL CALLS - OUTSIDE [C-28]
CALL FORWARDING - BUSY LINE - OUTSIDE [C-60]
CALL FORWARDING - DON’T ANSWER - OUTSIDE [C-74]
13. The following services are activated within one node, therefore, the number of times for these services are
independent. The maximum number of times for activating this feature is the same as previous software
releases:
MULTIPLE CALL FORWARDING - ALL CALLS [M-44]: 5 times
MULTIPLE CALL FORWARDING - BUSY LINE [M-24]: 5 times
MULTIPLE CALL FORWARDING - DON’T ANSWER [M-25]: unlimited
When the call is forwarded 
by C.F. - A/D - CCIS, the call 
terminates to this station. 1st C.F.
2nd C.F.
3rd 
C.F. Calling Party
Intermediate Party
Office A Office B Office C
CCIS CCIS
1st C.F. 2nd C.F.
3rd C.F. 
						

							NEAX2400 IMX CCIS Features and Specifications
Page 128NDA-24222, Issue 3
M-40 Multiple Call Forwarding - All Calls - CCIS
Service Conditions (cont’d)
14. The following are detailed examples of Call Forwarding - CCIS activation. These examples are activated
under the conditions below:
 The maximum number of times to activate the service is three (programmed in Office A and Office B).
 The last call forwarding is operated by Call Forwarding - All Calls/Don’t Answer service.
 Any kind of D
term, ISDN terminal, PHS, etc. is available to be used for the calling/intermediate party.
 Any kind of Call Forwarding service (All Calls/Busy Line/Don’t Answer) is available to be set at the
calling/intermediate terminal.
a.) The service is restricted because the terminating Office B is unavailable for enhanced Call
Forwarding - CCIS service.
The node that decides number of times for activating service.
The node that is available for the enhanced Call Forwarding - CCIS services.
The node that is unavailable for the enhanced Call Forwarding - CCIS services.
1st C.F.2nd C.F. 
UNAVAILABLE CCIS CCIS Office A Office B Office C 
						

							NEAX2400 IMX CCIS Features and Specifications
NDA-24222, Issue 3
Page 129
Multiple Call Forwarding - All Calls - CCIS M-40
Service Conditions (cont’d)
b.) The service is restricted because the service has already been activated the predetermined number
of times.
c.) When Office A is not available for the enhanced Call Forwarding feature, the number of times the
service is activated is decided by Office B (three times are effective in this example). Note that
Call Forwarding service from Office A to Office B is included in the number of times service is
activated.
a.
Office A Office B Office C
Office D Office E
CCIS CCIS CCISCCIS
b.1st C.F.UNAVAILABLE
4th C.F. 2nd C.F.
3rd C.F.
Office B
Office A Office CCCIS
CCIS
4th C.F. 
UNAVAILABLE
CCIS
3rd C.F. 1st C.F.
2nd C.F.
Office A Office B Office C Office D Office E
CCIS CCIS CCISCCIS
1st C.F.UNAVAILABLE
4th C.F. 2nd C.F.
3rd C.F. 
						

							NEAX2400 IMX CCIS Features and Specifications
Page 130NDA-24222, Issue 3
M-40 Multiple Call Forwarding - All Calls - CCIS
Service Conditions (cont’d)
d.) The Call Forwarding service is activated four times, because the call is forwarded from Office D
to Office E through FCCS link:
Note:
Call Forwarding service activated through FCCS link (Call Forwarding*) is not included in the number of times that
the Multiple Call Forwarding - CCIS service is activated.
e.) When the trunk/station incoming call terminates through FCCS link, the number of times for the
service activation is decided by the FCCS node. This condition is also applied when the call is
forwarded from Office A to Office B through FCCS link.
f.) This service is restricted when a call from the CCIS line is forwarded to other lines except CCIS
(for example: C.O. line).
Office A Office B Office C Office D Office E
CCIS CCISCCIS CCISOffice F
FCCS
1st C.F.
C.F.* 2nd C.F.3rd C.F.
a. When a call terminates through FCCS link, the number of times is decided by Office A (the FCCS node has the calling party) in  
this case.
Office A Office B Office C Office D Office E
CCIS FCCSCCIS CCISOffice F
CCIS
1st C.F. 4th C.F.2nd C.F. 3rd C.F.
b. When a call forwarded through FCCS link, the number of times is decided by Office A (the FCCS node has the forwarding party) 
in this case.
Office A Office B Office C Office D Office E
CCIS FCCSCCIS CCISOffice F
CCIS
1st C.F. 4th C.F.2nd C.F. 3rd C.F. 
						

							NEAX2400 IMX CCIS Features and Specifications
NDA-24222, Issue 3
Page 131
Multiple Call Forwarding - All Calls - CCIS M-40
Interactions
When a calling party sets the services shown below while the destination party is in busy status, the services are
performed to the first forwarded party.
1. In the case of Busy Verification - CCIS [B-9] or Executive Right-of-Way - CCIS [E-8], the service is
effective to Station B in Office B. The service is invalid to station D.
a.) When Station B is in busy status, Busy Verification - CCIS [B-9] and Executive Right-of-Way -
CCIS [E-8] are activated.
b.) When Station B is in idle status, Station B is rung.
2. In the case of Message Reminder - CCIS [M-34, 34D], service is performed to Station B in Office B. The
service is invalid to station D.
Office A Office B Office C Office D
Originating 
Party
Station A
Station B Station C Station D 
(Busy) 1st C.F. 2nd C.F.
3rd C.F. CCIS CCISCCIS
Office A Office B Office C Office D
Originating 
Party
Station A
Station B Station C Station D 
(Busy) 1st C.F. 2nd C.F.
3rd C.F. CCIS CCISCCIS 
						

							NEAX2400 IMX CCIS Features and Specifications
Page 132NDA-24222, Issue 3
M-40 Multiple Call Forwarding - All Calls - CCIS
Interactions (cont’d)
3. In the case of Call Back - CCIS [C-44], service is effective to Station B in Office B. The service is invalid
to station D.
4. In the case of Step Call - CCIS [S-59], the service is valid to Station B in Office B. The service is invalid
to station D.
Office A Office B Office C
Office D
Originating 
Party
Station A
Station B Station C Station D 
(Busy) 1st C.F. 2nd C.F.
3rd C.F. CCIS CCISCCIS
Office A Office B Office C Office D
Originating 
Party
Station A
Station B Station C Station D 
(Busy) 1st C.F. 2nd C.F.
3rd C.F. CCIS CCISCCIS 
						

							NEAX2400 IMX CCIS Features and Specifications
NDA-24222, Issue 3
Page 133
Multiple Call Forwarding - Busy Line - CCIS M-41
M-41  Multiple Call Forwarding - Busy Line - CCIS
General Description
This service feature permits a call to a busy station to be forwarded in a CCIS network, multiple times, to a
predesignated idle station.
1. With existing CALL FORWARDING-BUSY LINE [C-2] (CF-B) service:
2. With MULTIPLE CALL FORWARDING-BUSY LINE [M-24] service:
Operating Procedure
1. Station A sets Call Forwarding-Busy Line to Station B. Station B sets Call Forwarding-Busy Line to
Station C. Station C sets Call Forwarding-Busy Line to Station D.
2. Stations A, B, and C are busy when an incoming call is directed to Station A. The call is forwarded to
Station B first, then to Station C, and on to Station D. The calling party receives ringback tone, and ringing
starts at Station D.
3. Station D lifts the handset to answer and is connected to the calling party.
Service Conditions
1. The service conditions within the node comply with those of MULTIPLE CALL FORWARDING-BUSY
LINE [M-24]. 
2. A call can be forwarded by CALL FORWARDING a maximum of one time between nodes in a CCIS
network. 
 
Call
Ringing1st TimeCF-A
B A
S
1st TimeCF-B
2nd TimeCF-B
3rd TimeCF-B
4th Time
CF-B 5th Time
CF-B Ringing
S Call
A
B
C
D
E
F 
						

							NEAX2400 IMX CCIS Features and Specifications
Page 134NDA-24222, Issue 3
M-41 Multiple Call Forwarding - Busy Line - CCIS
Service Conditions (cont’d)
3. When CALL FORWARDING is performed in a CCIS network, the following services are not available
at a forwarded-to-station:
CALL FORWARDING-ALL CALLS-OUTSIDE [C-28]
CALL FORWARDING-BUSY LINE-OUTSIDE [C-60]
CALL FORWARDING-DON’T ANSWER-OUTSIDE [C-74]
4. When a call is forwarded to the calling party by CALL FORWARDING-BUSY LINE - CCIS [M-41], the
calling party hears busy tone.
 
Busy
CF-B - CCIS or
CF-B-Outside CCIS CF-B - CCIS
Call Originating 
Station
CF-B
CF-BCF-BCF-B
LEGEND
 CF-B: Call Forwarding -Busy Line
 CF-B - CCIS: Call Forwarding -Busy Line - CCIS
 CF-B-Outside: Call Forwarding -Busy Line-Outside
Busy Tone
BusyBusy
Call Originating Station
Busy Tone
CF-BCF-B CF-B CCIS Call
CF-B - CCIS CCISBusy
Busy
Busy
Busy 
						

							NEAX2400 IMX CCIS Features and Specifications
NDA-24222, Issue 3
Page 135
Multiple Call Forwarding - Busy Line - CCIS M-41
Service Conditions (cont’d)
5. SERVICE DISPLAY - CCIS [S-53] is available at the terminating node. The type of forwarding to be
displayed is CF BUSY.
6. When a call is terminated to an ATTENDANT CONSOLE [A-3] by the MULTIPLE CALL
FORWARDING-BUSY LINE - CCIS [M-41], the call type is BUSY.
7. The system data (ASYD, SYS1, INDEX 486, bit 0-2) decides the maximum number of times for activating
a call forwarding service between nodes through CCIS. The number of times is selected in the range of 1
time to 7 times (ASYD, SYS1, INDEX 486, bit 0-2 = 0 means the enhanced feature is not available).
8. The number of times for activating this service between CCIS nodes is decided by system data
programmed at the node that has the station operating the first Call Forwarding service through CCIS link.
However, when the node that accommodates the station operating the service first has not been
programmed, the number of times is decided at the node that accommodates the destination of the first
Call Forwarding - CCIS service.
9. When Multiple Call Forwarding - CCIS is activated and the last intermediate party forwards (returns) the
call to the first calling party, the calling party may hear either ringback tone or busy tone.
The Calling party hears ringback tone when the forwarding destination number, assigned to the last
intermediate party (intermediate party 2 in the example below), and the calling party number sent from the
calling party are identical.
Call Originating Station
CF-B - CCISCCIS
Ringing CF-B
CF-A
CF-B
E: 4020 822 820 S: 2000
A: 4211
BD
CLEGEND
 CF-A: Call Forwarding -All Calls
Calling Party (S) Called Party (E)
4211
Dialed NumberCF BUSY 8202000
Type of 
ForwardingCalling Station 
Number
Busy
Busy
Busy
2nd C.F. (All 
Calls/Busy)
1st C.F. (All Calls)
Node ANode B
Intermediate 
Party 1 Calling Party
Ringback Tone
Intermediate 
Party 2
Ringing