NEC Neax 2400 Ipx Isdn Feature Programming Manual

NDA-24305 CHAPTER 6
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CALL TRANSFER SUPPLEMENTARY SERVICE (SS-CT) WITH REROUTING
Rerouting Function
1. Rerouting function is available when: 
(a) SS-CT service is available.
(b) Bearer Capability information of speech or 3.1 kHz audio is available for rerouting function
(Unrestricted digital data cannot be forwarded and the line is disconnected).
(c) Transmission speed rate is 64 kbps.
(d) The calling party, the called party, and the destination station are D
term or analog station....

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6. Reestablished route is decided by the routing selection pattern data programmed at the office where the
calling party is accommodated or the gateway PBX office to the called station. Therefore, the improper route
or the route that is the same as before rerouting function may be selected depending on the office data. 
For Examples 1) through 4), see the figure below.
For Example 5), see the figure...

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4. Interactions
Call Transfer-Supplementary Service
1. When CALL PARK [C-29] is used with this feature:
The call parked by CALL PARK feature cannot be transferred by the SS-CT service. While, the station
operated CALL PARK can use the SS-CT service for the another incoming call.
2. When CALL HOLD [C-6] is used with this feature:
The call held by CALL HOLD feature cannot be transferred by the SS-CT...

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5. Programming
Assign the data for IS-11572/Q-SIG interface establishment referring to “IS-11572 (Layer 3 specifications for
inter-PBX signaling protocol)/Q-SIG (Circuit Switched Basic Call-ETSI Version)” on this manual.
STEP 1: ASYD - Assign the system data concerned with this feature.
SYS1, INDEX17, b4. Blind Transfer to Attendant  0/1 = Out/In Service
SYS1, INDEX69, b0. Return transferred call to...

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IS-11572 (LAYER 3 SPECIFICATIONS FOR INTER-PBX SIGNALING PROTOCOL)
I-42 IS-11572 (LAYER 3 SPECIFICATIONS FOR INTER-PBX SIGNALING PROTOCOL)
1. General Description
This feature allows inter-PBX link using Layer 3 signalling protocol supporting circuit mode bearer services
(ISO/IEC IS-11572). This feature has the following functions:
 Outgoing/Incoming Call Connection
 Tandem Connection
 Inter-PBX Link
This feature is available for the PBX with the PA-30PRTC...

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2. Bearer Capability
 The transfer rate is 64 kbps/384 kbps/1,536 kbps/64 kbps × n (since Release 4) only.
 This feature provides the following Bearer Capabilities:
– Speech
– Unrestricted Digital Information
– Restricted Digital Information (only in case of interworking)
– 3.1 kHz audio
– Unrestricted Multi-Rate
 At terminating PBX, received bearer capabilities are converted as shown below....

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IS-11572 (LAYER 3 SPECIFICATIONS FOR INTER-PBX SIGNALING PROTOCOL)
3. Connectivity
IS-11572 is available for the following connection and interworking with the other networks.
Note that connection test is required when the NEC’s PBX and other manufacturer’s PBX coexists in an
IS-11572 network.
CCISNEC ISDN
Analog C.O. Line
Existing Office
Existing OfficeOther Manufacturer
IS-11572
Network
IS-11572
ACIS 

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 Connectivity between IS-11572 and terminal equipment is shown below.
4. Calling/Called Party Number Information
 As a calling/called party number, a maximum of 32 digits can be transmitted and received.
(Note that the contents of the calling/called party number display vary depending on the type of
terminal.)
 When different signalling systems are involved, transparency of calling/called...

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IS-11572 (LAYER 3 SPECIFICATIONS FOR INTER-PBX SIGNALING PROTOCOL)
3. Service Conditions
1. The multi-rate bearer service is available.
Multi-rate bearer service: Desirably multiplied value of 64 (64 kbps × “n”-desired number) is available for
the data transmission speed in addition to the current speed such as 384K (64K
× 6), 1536K (64K × 24) and 1920K (64K × 30).
The following service conditions are concerned with the multi-rate bearer service.
(a) Routing data...

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(c) The connection patterns for the UUS transmission are shown in the figure below.
Pattern 1: The ISDN tandem connection
Note:  
Either ISDN(a) or ISDN(b) is Q-sig/IS-11572 interface.
PBX                                          PBX                                          PBX
ISDN(a)
Pattern 2: The interface used in the terminating office is Q-sig/IS-11572.
Pattern 3: The interface used in the...