NEC Neax 2400 Imx Isdn Features And Specifications

							NEAX2400 IMX ISDN Features and Specifications
NDA-24281, Issue 1
Page 185
NI-1 BRI Terminal Support N-39
N-39 NI-1 BRI Terminal Support
General Description
This feature supports the Bellcore BRI protocol, National ISDN-1 for connection of Voice and Data circuit switched
terminals.
The PBX may send Endpoint Identifier (EPID) to the terminals by receiving their Service Profile Identification
(SPID) and provide supplementary service (CALL TRANSFER) by Feature Identifier (FID) assigned on each
terminal. The National ISDN-1 Hold feature is also supported.
The PBX enables the N-ISDN1 terminal to display a calling number upon call termination by delivering a SETUP
message with the information element of Display Text.
The N-ISDN1 terminal may also display Call Hold or Call Transfer service when it is activated.
Operating Procedure
SPID and FID are assigned according to the N-ISDN1 terminals.
Service Conditions
1. The SPID is assigned in each terminal (A telephone number + 00 is preferred.). An SPID number of 20
digits or the less may be assigned.
2. The EPID the PBX sends to a terminal is in response to the SPID received from the terminal. The User
Service Identifier (USID) in EPID is a value using first 2 digits of SPID, and Terminal Identifier (TID) in
EPID is the value using last 2 digits of SPID. However, if the last 2 digits of SPID is 63 or higher, TID is
62. When SPID is 1 digit, USID is the first digit plus 0. SPID and TID is the value using SPID.
3. Since Electronic Key Telephone Service (EKTS) is not supported, USID which is included in EPID upon
sending a SETUP message to a terminal, is fixed 127 and TID is omitted.
4. The maximum number of patterns for FID is 31 (from 1 to 31), allowing the many different terminal types
using different FID fixed values.
5. FID ranges from 1 to 127.
6. An FID pattern is assigned for the number of the station using the B1-channel (even Level). Since the B2-
channel is controlled according to the FID pattern assigned to the B1-channel, assignment to the B2-
channel is not needed. Therefore if station data of the N-ISDN1 terminal is assigned only to the B2-
channel, this service is not activated.
7. Display Text on the SETUP message, which is delivered to the N-ISDN1 terminal from the PBX, is the
same as the calling party number.
8. The disconnection (DISC) message including Display Text to clear the display is delivered when a call is
disconnected from the PBX. 
						

							NEAX2400 IMX ISDN Features and Specifications
Page 186NDA-24281, Issue 1
N-39 NI-1 BRI Terminal Support
Service Conditions (cont’d)
9. The following are Display Texts which can be displayed on the N-ISDN1 terminal:
10. Circuit card PA-8ILCE-A is required.
Display
Number Display Text Message Situation causing delivery of display to user
FC-13 Transfer to:HOLD or 
INFOTransfer request with call reference value of a 
non-conference related call
FC-19Transfer denied
Try again laterINFOTransfer request rejected because call not 
established
HC-1 Call Held HOLD ACK If call successfully held
HC-2 Held Call Cleared clearing Held call cleared by held user or switch
HC-5 You are on hold NOTIFYNotification indicator information coded to 
remote-hold
HC-6 Request deniedHOLD REJ Cause #50 in HOLD REJ message
INFOHold procedure unsuccessful with transfer 
request
CC-5 Connected CONN ACK Sent to called party in CONN ACK
NOTIFYNotification indicator information coded to 
remote-hold release
CC-23Call blocked
Try again laterRET REJCause #34 in RET REJ message
Cause #44 in RET REJ message 
						

							NEAX2400 IMX ISDN Features and Specifications
NDA-24281, Issue 1
Page 187
Non-Facility Associated Signaling - PRI N-40
N-40  Non-Facility Associated Signaling - PRI
General Description
This feature expands the number of B-channels controlled by one D-channel in a system.
Operating Procedure
No manual operation is required.
Service Conditions
1. Limitations on the number of B-channels controlled by one D-channel in a system are explained below.
The limitations depend on the system traffic, so those are shown at each system.
Transaction abilities are as follows:
a.) When the system is composed of ISDN terminals/ISDN trunks only and ACD service is available
(IOT : OG : IC = 40 : 30 : 30):
b.) If the mean conversation time is 2 minutes and the used line rate is 85%, the following estimated
traffic may be needed for non-facility associated signaling:
c.) The maximum number of B channels which can be controlled by one D channel is 191.
SystemOG + ICIOT + OG + IC
IMX 9,670BHC 16,120BHC
The number of BchEstimated traffic
47 (DTI 2)
71 (DTI 3)
95 (DTI 4)
119 (DTI 5)
143 (DTI 6)
167 (DTI 7)
191 (DTI 8)1,290BHC
1,980BHC
2,640BHC
3,340BHC
3,940BHC
4,660BHC
5,350BHC 
						

							NEAX2400 IMX ISDN Features and Specifications
Page 188NDA-24281, Issue 1
N-42 National ISDN - 2 PRI
N-42 National ISDN - 2 PRI
General Description
This feature enables a basic connection to the N (National) – ISDN2 network and supports Non-facility Associated
Signaling – PRI [N-40] service, D channel Backup – PRI [D-152] service, etc., via this network.
Operating Procedure
No manual operation is required.
Service Conditions
1. The network protocol should be NI-2 (National ISDN2).
2. Conditions on D channel Backup – PRI service are the same as those on existing D channel Backup – PRI
service. However, protocol identifier should be 0 × 43.
3. This service does not support the features in the network side.
4. This service does not support the Virtual Tie Line (Time Link).
5. This service does not support the calls having the BEARER information element of which data speed is
N× 64 kbps.
6. The following issues of firmware are required to be equipped on the circuit cards:
Circuit Card
PA-24PRTB Contact NEC Engineering for firmware requirements.
PA-24DTR Contact NEC Engineering for firmware requirements. 
						

							NEAX2400 IMX ISDN Features and Specifications
NDA-24281, Issue 1
Page 189
PRI Terminal Support P-58
P-58 PRI Terminal Support 
General Description
This feature permits terminals which support the AT&T 4ESS protocol and H0/H11 services. The PBX acts as the
terminal network.
Operating Procedure
No manual operation is required.
Service Conditions
1. The protocol for AT&T network is used. The AT&T 4ESS protocol is used for this application.
2. Calls for B/H0/H11 type services can be switched.
3. Connected terminals must have the AT&T protocol.
4. Channel negotiation is not performed for calls using the H0/H11 services.
5. The SMDR record shows the call as a tandem connection. The SMDR record for the H0/H11 channel is
the same as for B type call. SMDR information is not sent to terminals.
6. Service peg is not available.
7. Route peg count service for either H0/H11 channel is performed as one count, when the trunks are seized
regardless of the number of the trunks.
8. Traffic measurement is performed for all trunks used for either H0/H11 channel.
9. Individual Trunk Access service is not available when the trunks are controlled as the H0/H11 channel.
10. Busy lamp field control is not supported. 
						

							NEAX2400 IMX ISDN Features and Specifications
Page 190NDA-24281, Issue 1
Q-4 Q-SIG Circuit Switched Basic Call - ETSI Version
Q-4  Q-SIG Circuit Switched Basic Call - ETSI Version
General Description
This feature provides a tie-line connection between the NEAX2400 IMX and the other Q-SIG PBX using the ISDN
protocol in conformity with ETS 300 172 standardized by ETSI (European Telecommunications Standards
Institute).
Note 1:Layer 2 interface should be in conformity with Q.921.
Note 2:Connection to other vendor’s PBXs requires prior System Interworking Tests. Direct all inquires regarding which
PBXs the IMX System can be connected to or on arranging for testing with a particular vendor’s PBX to NEC America,
Inc. Corporation Networks Group Product Management department.
Operating Procedure
No manual operation is required.
Service Conditions
1. Layer 2 and less should be activated normally.
2. Redundancy structure
a.) One D channel can control maximum 60 B-channels.
b.) Control using the nB + D interface is available.
3. Split call (LCRC) from an Attendant console, data terminal or I terminal is not supported.
4. The Multi-rate bearer service is available.
Multi-rate bearer service: Desirably multiplied value of 64 (64 kbps x n -desired number) is
available for the data transmission speed in addition to the current
speed such as 384K (64K x 6), 1536K (64K x 24) and 1920K (64K x 30).
Following are the service conditions concerned with the multi-rate bearer service.
a.) Routing data must be assigned per physical interface (PRT/DTI).
b.) Overlap sending (LCRS) is not provided with this feature.
c.) Multi-rate bearer service is provided for the PBXs connecting directly with the Q-SIG interface.
(If the PBXs are connected with the different interface such as the interface defined by Q.931/
Q.931-a or CCIS, only H0/H1 service (transfer rate is 384 kbps/1.5 Mbps) is available.)
5. The User-to-User Signaling (UUS) can be sent via Q-SIG interface.
Following are the conditions for the UUS transmission.
a.) The maximum data capacity for the UUS is 128 bytes and the latter part of excessive data is
automatically omitted.
ISDN
Another
OfficeCCISNEAX2400 IMXPBX
Q-SIG Q-SIG
PBX
Another
Office 
						

							NEAX2400 IMX ISDN Features and Specifications
NDA-24281, Issue 1
Page 191
Q-SIG Circuit Switched Basic Call - ETSI Version Q-4
Service Conditions (cont’d)
b.) The following messages for call establishment/clearing may include the UUS.
Setup
 Alerting
 Connect
 Progress
 Disconnect
 Release
 Release Complete
c.) The connection patterns for the UUS transmission follow:
Pattern 1: The ISDN tandem connection (Either ISDN (a) or ISDN (b) is Q-SIG interface.)
Pattern 2: The interface used in the terminating office is Q-SIG.
Pattern 3: The interface used in the originating office is Q-SIG.
Interactions
The following services can be provided in conjunction with this feature:
a.) Common station/voice service
CALL FORWARDING – ALL CALLS – CCIS [C-45] Note 1
CALL FORWARDING – BUSY LINE – CCIS [C-46] Note 1
CALL FORWARDING – DON’T ANSWER– CCIS [C-47] Note 1
CALLING PARTY INFORMATION TRANSFER [C-112] Note 1
DIRECT-IN TERMINATION – CCIS [D-74] Note 1
CALL TRANSFER – ALL CALLS – CCIS [C-50] Note 1
HOT LINE – CCIS [H-12] Note 1
DO NOT DISTURB – CCIS [D-76] Note 1
CALLING NUMBER DISPLAY – CCIS [C-52]
b.) Attendant Console service
DIGITAL DISPLAY – TRUNK – CCIS [D-73]
SPEED CALLING – SYSTEM [S-3] Note 2
CALL QUEUING [C-9]
c.) Network features
TRUNK-TO-TRUNK CONNECTION [T-10]
OUTGOING TRUNK BUSY – ANNOUNCEMENT [O-21]
BROKERAGE HOT LINE – OUTSIDE [B-12]
LCR – AUTOMATIC OVERFLOW TO DDD – EPN [L-13]
LCR – TIME OF DAY ROUTING [L-10]
LCR – CLOCKED MANUAL OVERRIDE – EPN [L-14]
LCR – ATTENDANT MANUAL OVERRIDE – EPN [L-12]
LCR – SPECIAL LINE WARNING TONE – EPN [L-16]
TIE LINE CONNECTION WITH PAD CONTROL [T-5]
Note 1:Service not based on the specification of Q-SIG supplementary service.
Note 2:Service provided with some limitations. 
						

							NEAX2400 IMX ISDN Features and Specifications
Page 192NDA-24281, Issue 1
S-90 SDN Access
S-90 SDN Access
General Description
AT&T’s Software Defined Network (SDN) can be used.
SDN Access Connection
Operating Procedure
No manual operation is required.
Service Conditions
1. When a call has terminated by the CALL-BY-CALL SERVICE SELECTION [C-105], no indication to
distinguish it from a call termination by other services is made to a terminating terminal.
2. To identify a terminal to which a call has terminated, data must be registered using the ACDD command
so that a call terminating terminal can be identified by a terminating number.
2400
IMX#4ESS
PRISDN
2400
IMX #4ESS
PRI 
						

							NEAX2400 IMX ISDN Features and Specifications
NDA-24281, Issue 1
Page 193
SID to Network - Present S-91
S-91 SID to Network - Present
General Description
This ISDN feature allows the ISDN network to be informed of the calling party telephone number (SID) when a call
originates from a terminal connected to the NEAX2400 IMX.
Operating Procedure
No manual operation is required. Calling telephone number is sent to the ISDN network automatically.
Service Conditions
1. The data provided as the calling telephone number is assigned via MAT for each ISDN circuit. In addition,
if no data has been assigned as the calling telephone number, the NEAX2400 IMX does not provide any
information to the network.
2. A maximum of 24 digits can be assigned as the calling telephone number.
3. Transmission of SID to the ISDN network can be restricted temporarily. For the details, refer to Station
Feature Class (SFC) of service.
4. The use of SID information is dependent on the delivery of that information by local regulations. 
						

							NEAX2400 IMX ISDN Features and Specifications
Page 194NDA-24281, Issue 1
S-92 SID to Network - Privacy
S-92 SID to Network - Privacy
General Description
This ISDN feature enables the originating user to control the transfer of Station Identification Numbers in the
network by means of AUTHORIZATION CODE [A-20] dialing through the NEAX2400 IMX.
Operating Procedure
No manual operation is required.
Service Conditions
1. The originating telephone number is transmitted unless restricted by Service Feature Class.
2. The use of SID information is dependent on the delivery of that information by local regulations.
3. This service is currently not supported by #4ESS.
4. Currently this feature can only be used by D
terms, analog telephones, or terminals connected to the
NEAX2400 IMX.