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Meridian 1 and Succession Communication Server for Enterprise 1000
International ISDN Primary Rate Interface
Feature description and administration
Document Number: 553-2901-301
Document Release: Standard 9.00
Date: January 2002
Year Publish FCC TM
Copyright © 1991–2002 Nortel Networks
All Rights Reserved
Printed in Canada
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant. This equipment has been tested
and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules, and the
radio interference regulations of the Industry Canada. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case users will be required to
correct the interference at their own expense.
SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.
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International ISDN PRI Feature description and administration
4
Revision history
January 2002 Standard 9.00. This document is up-issued to include content changes for
Meridian 1 Release 25.40 and Succession Communication Server for
Enterprise 1000 Release 1.1.
April 2000 Standard 8.00. This is a global document and is up-issued for X11 Release
25.0x. Document changes include removal of: redundant content; references
to equipment types except Options 11C, 51C, 61C, and 81C; and references
to previous software releases.
June 1999 Issue 7.00 released as Standard for Generic X11 Release 24.2x.
October 1997 Issue 6.00 released as Standard for Generic X11 Release 23.00
January 1997 Minor changes made in response to NTP lab report forms.
September 1996 Issue 5.00 is released for X11 Release 22.0x in order to reflect changes in
technical content.
August 1996 Issue 4.00 released as Standard for Generic X11 Release 22.0x.
There have been additions made to this document. Information pertaining to
Feature overview, Operating parameters, Feature interactions, Feature
packaging, and Feature operation is now included with the original Feature
administration information. As well, the Engineering and configuration
guidelines are now part of this document. Accordingly, the title of this
Page 4 of 1814 Revision history
553-2901-301 Standard 9.00 January 2002
document has been changed to International ISDN PRI Feature description
and administration.
December 1995 Issue 3.00 released as Standard for Generic X11 Release 21.1x.
July 1995 Issue 2.00 released as Standard for Generic X11 Release 21.0x.
July 1994 Issue 1.00 released as Standard for Generic X11 Release 20.00
July 1993 This issue is the Phase 8B standard release.
October 1992 This document is the standard release for Phase 7C.
June 1992 This publication is the standard release for Phase 7B.
December 1991 This publication is the standard release for Group F (Phase 6B iii).
July 1991 This publication is the standard release for Phase 5.
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International ISDN PRI Feature description and administration
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Contents
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . 3
About this document . . . . . . . . . . . . . . . . . . . . . . 13
ISDN product overview . . . . . . . . . . . . . . . . . . . . . 15
Connection parameters . . . . . . . . . . . . . . . . . . . . 23
Meridian 1 Correlation tables . . . . . . . . . . . . . . . . 45
Data administration . . . . . . . . . . . . . . . . . . . . . . . . 63
1.5/2.0 Mbps Gateway . . . . . . . . . . . . . . . . . . . . . . 91
510 Trunk Route Member Expansion . . . . . . . . . 129
Advice of Charge . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Analog Semi-permanent Connections . . . . . . . . 183
Attendant and Network Wide
Remote Call Forward . . . . . . . . . . . . . . . . . . . . . . 189
Attendant Blocking of Directory Number . . . . . . 203
Attendant Through Dialing Networkwide . . . . . . 215
Australia ETSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Backup D-channel . . . . . . . . . . . . . . . . . . . . . . . . . 249
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553-2901-301 Standard 9.00 January 2002
Basic Call Service . . . . . . . . . . . . . . . . . . . . . . . . . 253
B-channel Overload Control . . . . . . . . . . . . . . . . 257
Break-in Features . . . . . . . . . . . . . . . . . . . . . . . . . 271
BRI/PRI Basic Call Interworking . . . . . . . . . . . . . 289
BRI Trunks with Night Service Enhancement . . 293
Business Networking Express/EuroISDN Call
Diversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Business Networking Express/EuroISDN
Explicit Call Transfer . . . . . . . . . . . . . . . . . . . . . . 339
Business Networking Express/Name and Private
Number Display . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Call Charge Keeping . . . . . . . . . . . . . . . . . . . . . . 393
Call Connection Restriction . . . . . . . . . . . . . . . . 395
Call Detail Recording Enhancement . . . . . . . . . . 399
Call Forward All Calls/No Answer . . . . . . . . . . . . 413
Call Forward, Break-In and Hunt Internal
or External Network Wide . . . . . . . . . . . . . . . . . . 415
Call Forward/Hunt Override Via Flexible
Feature Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Call Page Network Wide . . . . . . . . . . . . . . . . . . . . 431
Call Park Network Wide . . . . . . . . . . . . . . . . . . . . 439
Call Pickup Network Wide . . . . . . . . . . . . . . . . . . 451
Calling Line Identification (CLID) . . . . . . . . . . . . 469
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International ISDN PRI Feature description and administration
Calling Line Identification in CDR . . . . . . . . . . . . 475
CLID on Analog Trunks for Hong Kong
(A-CLID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
Calling Party Privacy . . . . . . . . . . . . . . . . . . . . . . . 485
Calling Party Privacy Override . . . . . . . . . . . . . . . 501
Channel Negotiation . . . . . . . . . . . . . . . . . . . . . . . 521
D-Channel Expansion . . . . . . . . . . . . . . . . . . . . . . 525
Data Packet Network access . . . . . . . . . . . . . . . . 533
DID-to-network Calling . . . . . . . . . . . . . . . . . . . . . 537
Digit Key Signaling at Console . . . . . . . . . . . . . . 539
Digital Trunk Interface and Primary Rate
Interface Time Slot Reuse . . . . . . . . . . . . . . . . . . 543
Display of Access Prefix on CLID . . . . . . . . . . . . 545
Display of Calling Party Denied . . . . . . . . . . . . . . 551
DPNSS1/DASS2 to Q.931 Gateway . . . . . . . . . . . 563
DPNSS1 Route Optimisation/MCDN Trunk
Anti-Tromboning Interworking . . . . . . . . . . . . . . . 565
E.164/ESN Numbering Plan Expansion . . . . . . . . 579
Electronic Lock Network Wide/Electronic
Lock on Private Lines . . . . . . . . . . . . . . . . . . . . . . 599
Electronic Switched Network Compatibility
on ISDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613
Electronic Switched Network interworking . . . . 617
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553-2901-301 Standard 9.00 January 2002
Emergency Services Access . . . . . . . . . . . . . . . . 625
Equi-distribution Routing Network
Attendant Service . . . . . . . . . . . . . . . . . . . . . . . . . 627
Error Handling on ISDN Signaling Link
Analog E&M TIE Trunks . . . . . . . . . . . . . . . . . . . . 631
EuroISDN 7kHz/Videotelephony Teleservices . . 637
EuroISDN Continuation . . . . . . . . . . . . . . . . . . . . 653
EuroISDN Continuation Phase III . . . . . . . . . . . . 669
EuroISDN ETS 300 403 Compliance Update . . . 693
EuroISDN Malicious Call Identification . . . . . . . 721
EuroISDN Trunk - Network Side . . . . . . . . . . . . . 735
Idle Extension Notification . . . . . . . . . . . . . . . . . 749
Incoming Trunk Programmable
Calling Line Identification . . . . . . . . . . . . . . . . . . 757
Integrated Services Access . . . . . . . . . . . . . . . . . 761
Integrated Trunk Access . . . . . . . . . . . . . . . . . . . 779
ISDN Calling Line Identification
Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . 781
ISDN PRI Central Office Connectivity . . . . . . . . . 815
ISDN QSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 915
ISDN QSIG Alternate Routing . . . . . . . . . . . . . . . 923
ISDN QSIG Basic Call . . . . . . . . . . . . . . . . . . . . . . 935
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International ISDN PRI Feature description and administration
ISDN QSIG-BC and QSIG-GF Compliance
Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 941
ISDN QSIG Call Diversion Notification . . . . . . . . 949
ISDN QSIG Call Diversion Notification
Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 967
ISDN QSIG Call Transfer Notification . . . . . . . . . 999
ISDN QSIG Channel ID Coding . . . . . . . . . . . . . . . 1015
ISDN QSIG/ETSI GF Enhancement . . . . . . . . . . . 1021
ISDN QSIG/EuroISDN Call Completion . . . . . . . . 1029
ISDN QSIG/EuroISDN Call Completion
Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1043
ISDN QSIG Generic Functional Transport . . . . . 1067
ISDN QSIG Name Display . . . . . . . . . . . . . . . . . . . 1071
ISDN QSIG Name Display Enhancement . . . . . . . 1083
ISDN QSIG Path Replacement . . . . . . . . . . . . . . . 1113
ISDN Semi Permanent Connections
for Australia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1129
ISDN Signaling Link . . . . . . . . . . . . . . . . . . . . . . . 1149
Japan D70 nB+D . . . . . . . . . . . . . . . . . . . . . . . . . . 1159
Japan TTC Common Channel Signaling . . . . . . . 1165
Malicious Call Trace Enhancements . . . . . . . . . . 1175
MCDN Alternate Routing . . . . . . . . . . . . . . . . . . . 1189
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553-2901-301 Standard 9.00 January 2002
MCDN End to End Transparency . . . . . . . . . . . . 1203
Meridian Hospitality Voice Services . . . . . . . . . . 1233
Meridian Mail Trunk Access Restriction . . . . . . 1241
Message Waiting Indication Interworking
with DMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1251
MSDL Idle Code Selection . . . . . . . . . . . . . . . . . . 1265
MSDL Status Enquiry Message Throttle . . . . . . 1271
MSDL Port Overload Counter . . . . . . . . . . . . . . . 1277
National ISDN 2 TR-1268 Primary
Rate Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1285
Network ACD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1291
Network and Executive Distinctive Ringing . . . . 1295
Network Application Protocol Link
Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1301
Network Attendant Service . . . . . . . . . . . . . . . . . 1303
Network Call Party Name Display/
Network Name Delivery . . . . . . . . . . . . . . . . . . . . 1323
Network Call Redirection . . . . . . . . . . . . . . . . . . . 1329
Network Call Transfer and Network
Extended Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . 1349
Network Drop Back Busy and Off-hook
Queuing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1351
Network Individual Do Not Disturb . . . . . . . . . . . 1357
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International ISDN PRI Feature description and administration
Network Intercom (Hot Type D and
Hot Type I Enhancements) . . . . . . . . . . . . . . . . . . 1361
Network Message Services . . . . . . . . . . . . . . . . . 1371
Network Ring Again . . . . . . . . . . . . . . . . . . . . . . . 1383
Network Signaling on Virtual Network
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1391
Network Tenant Service . . . . . . . . . . . . . . . . . . . . 1399
Network Time Synchronization . . . . . . . . . . . . . . 1407
Network-wide Listed Directory Number . . . . . . . 1417
Network Break-in and Force Disconnect . . . . . . 1423
NI-2 B-channel Service Messaging . . . . . . . . . . . 1441
NI-2 Name Display Supplementary Service . . . . 1449
NI-2/QSIG Compliance Update . . . . . . . . . . . . . . . 1461
NI-2 Call By Call Service Selection . . . . . . . . . . . 1467
NPI and TON in CDR . . . . . . . . . . . . . . . . . . . . . . . 1489
Private to Public CLID Conversion . . . . . . . . . . . 1503
Radio Paging Improvement . . . . . . . . . . . . . . . . . 1525
Radio Paging Product Improvement
Continuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1531
Recall with Priority during Night Service
Network Wide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1533
Redirecting Name Display Enhancement
for QSIG Call Rerouting . . . . . . . . . . . . . . . . . . . . 1537
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553-2901-301 Standard 9.00 January 2002
Recorded Announcement for Calls Diverted
to External Trunks . . . . . . . . . . . . . . . . . . . . . . . . 1539
Reference Clock Switching . . . . . . . . . . . . . . . . . 1543
Remote Virtual Queuing . . . . . . . . . . . . . . . . . . . . 1547
Ring Again on No Answer . . . . . . . . . . . . . . . . . . 1561
SDID Number as CLID for EuroISDN Trunks . . . 1565
Software Defined Network Access . . . . . . . . . . . 1571
Singapore ISDN Restart Message
Enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1575
Software Release ID . . . . . . . . . . . . . . . . . . . . . . . 1577
Trunk Anti-Tromboning . . . . . . . . . . . . . . . . . . . . 1581
Trunk Optimization (Before Answer) . . . . . . . . . 1623
Trunk to Trunk Connection . . . . . . . . . . . . . . . . . 1631
Virtual Network Services Virtual
Directory Number Expansion . . . . . . . . . . . . . . . 1633
Virtual Network Services . . . . . . . . . . . . . . . . . . . 1641
ISDN BRI features . . . . . . . . . . . . . . . . . . . . . . . . . 1667
Engineering and configuration guidelines . . . . . 1769
Service verification . . . . . . . . . . . . . . . . . . . . . . . . 1799
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International ISDN PRI Feature description and administration
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About this document
This document provides an introduction to the Integrated Services Digital
Network (ISDN) and a description of the features available on the Meridian 1
Internet Enabled and Succession Communication Server for Enterprise 1000
systems with ISDN Primary Rate Interface (PRI). The document also
contains a chapter describing ISDN Basic Rate Interface (BRI) feature
support on the Meridian Internet Enabled and Succession CSE 1000 systems.
The feature modules in this publication contain the following information:
•Description explains how the feature operates and what it is designed to
do.
•Operating parameters describe the special requirements that pertain to
the function of the feature.
•Feature interactions describe how the feature interacts with other
Meridian 1 features.
•Feature packaging describes the software packaging requirements that
are necessary to operate the feature.
•Feature administration describes the steps required to configure the
feature in software. In this section, responses in parentheses are the
default responses. Also, only the prompts relevant to defining the
application are shown.
•Feature operation provides any user instructions necessary for the
operation of the feature, if applicable.
This document is a global document. Contact your system supplier or your
Nortel Networks representative to verify that the hardware and software
described is supported in your area.
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International ISDN PRI Feature description and administration
22
ISDN product overview
Contents The following are the topics in this section:
Regional material statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Integrated Services Digital Network . .. . . . . . . . . . . . . . . . . . . . . . . . . 15
ISDN protocol overview . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ISDN Primary Rate Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Primary Rate Interface structure . .. . . . . . . . . . . . . . . . . . . . . . . . . . 18
nB+D Primary Rate Interface . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ISDN Signaling Link Interface . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Backup D-channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Regional material statement
The information presented in this section does not pertain to all market
regions. Contact your system supplier or your Nortel Networks representative
to verify support of this product in your area.
Integrated Services Digital Network
Integrated Services Digital Network (ISDN) is a recommended standard for
digital communications. ISDN provides standard digital interfaces between
telephones, terminals, and telecommunications networks.
ISDN uses a common signaling protocol transmitted over a dedicated data
channel called the D-channel. The D-channel carries call set-up and
feature-activation information to the call destination. This allows users to
have access to network-wide features.
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553-2901-301 Standard 9.00 January 2002
ISDN services are categorized into two types of interfaces, Primary Rate and
Basic Rate.
ISDN Primary Rate Interface (PRI), provides 23B+D (T-1 carriers) or
30B+D (E-1 carriers) digital connectivity between the Meridian 1 or
Succession Communication Server for Enterprise 1000 and the following
interfaces:
• host computers
• other Meridian 1 and Succession CSE 1000
• SL-100
• DMS-100, DMS-250
•QSIG
ISDN PRI 30B+D access is provided to the following Central Office
connectivities:
•Australia ETSI
• AXE-10 (Sweden and Australia)
• SwissNet
• NEAX-61
•SYS-12
• Numeris VN3
•1TR6
• NET-3 and ETS 300 403 (EuroISDN)
•Asia Pacific
ISDN protocol overview
ISDN protocols govern the format, timing and sequencing used to exchange
data and control information between two terminal stations connected
through an ISDN network.
ISDN product overview Page 17 of 1814
International ISDN PRI Feature description and administration
These protocols are based on a model containing seven layers of protocol
developed by the International Standards Organization (ISO). This
seven-layer model, called the Open Systems Interconnection model, has been
adopted by the International Telegraph and Telephony Consultative
Committee (CCITT). It is the basis for building protocol structures for ISDN
service. ISDN currently uses four of the seven layers:
• layer 1—physical layer
• layer 2—link layer
• layer 3—network layer
• layer 7—application layer
Each layer uses the series of services provided by the layer beneath it, and
builds on these services to perform a communications function for the layer
above. For example, layer two builds on the services from layer one and
provides the combined services to layer three. This layered approach splits
the complex protocols into a series of easily managed blocks, each of which
can be modified without affecting protocols in another layer.
Layers one through three control the set-up of connections. These layers also
supervise the transmission of information between terminals and the packet
-switched and circuit-switched networks.
The PRA protocol layers are implemented on Meridian 1 and Succession
CSE 1000 as follows:
• Layer 1 (the Physical Layer) is handled by the Primary Rate Interface
(PRI) card.
• Layer 2 (the Link Layer) is handled by the D-channel Interface.
• Layer 3 (the Network Layer) is handled by Meridian 1 or Succession
CSE 1000 software.
• Layer 7 (the Application Layer) is also handled by Meridian 1 or
Succession CSE 1000 software.
The Application Layer uses the Transaction Capability Application Part
(TCAP) and the Remote Operation Service Element (ROSE) to process
applications. The transport of applications has three main parts:
• a simple interface allowing applications to send and receive data
Page 18 of 1814 ISDN product overview
553-2901-301 Standard 9.00 January 2002
• a non-call-associated supplementary service to handle TCAP remote
operation
• a call-associated supplementary service to handle ROSE remote
operation
Note: ROSE messaging is supported for call-associated messages;
TCAP messaging is supported for non-call-associated messages.
ISDN Primary Rate Interface
ISDN PRI provides the interface between a customer's equipment and the
public and private network, and allows basic call services and network
business services capabilities across the public and private networks.
The characteristics of PRI provide a standard digital interface that supports
the Q.931 protocol, as recommended by the International Telegraph and
Telephony Consultative Committee (CCITT). This protocol is a
message-oriented out-of-band signaling protocol that provides telephony,
data and supplementary services. The PRI architecture allows continued
growth in operations, maintenance and network business services.
Primary Rate Interface structure
The Primary Rate Interface is structured as a collection of digital, 64 kbps
channels. One channel is required for D-channel signaling information. The
other channels are for user voice and data transport and are referred to as
Bearer Channels or B-channels.
The physical (layer 1) specification for the Primary Rate Interface supports
the standard electrical characteristics and frame structures of the 1.5 Mb T-1
or 2.048 Mb E-1 digital carrier. Therefore, the PRI can have up to 23 or 30
B-channels and one D-channel.
nB+D Primary Rate Interface
Although the PRI layer 1 specifies the protocol for 23B+D or 30B+D
interface structures, layer 3 supports signaling for a “larger” PRI, in the form
of the nB+D Primary Rate Interface.
ISDN product overview Page 19 of 1814
International ISDN PRI Feature description and administration
In this configuration, one active D-channel can provide signaling support for
all the B-channels contained on a maximum of 16 digital carriers (384
B-Channels for T-1 carriers or 480 B-channels with E-1 carriers). The
following notes pertain to the nB+D configuration.
Note 1: nB+D PRI is only provided on the interfaces that support it, as
described in the feature modules throughout this document. Also, the
maximum number of digital carriers can be constrained by the switching
device on the far end of the link. To determine the constraints in your
market, consult your local Nortel Networks representative. Also note that
the maximum number “n” in nB+D configurations is subject to trunk
route limitations.
Note 2: For nB+D PRI, the actual D-channel configuration can depend
on market-specific requirements. Also, the backup D-channel can reside
on the first or second carrier in some markets.
Note 3: If the maximum number of carriers is configured for nB+D (that
is, 16), then it is assumed that the configuration includes a backup
D-channel. In configurations with less than 16 carriers, a backup
D-channel is not required, but is recommended.
ISDN Signaling Link Interface
The CCITT currently limits the Layer 1 ISDN protocols to digital facilities
only. Some customer applications can be met more effectively with analogue
facilities. Meridian 1 and Succession CSE 1000 Networking offers customers
this flexibility in the form of the ISDN Signaling Link (ISL) interface.
The ISL interface is a configuration unique to Meridian 1 and Succession
CSE 1000 Networking for:
• Meridian 1 or Succession CSE 1000 to Meridian 1 or Succession
CSE 1000 systems.
Note: The ISL interface is not supported on any other private exchange,
and no public exchange at all, due to the lack of standardization for ISL.
It extends the advantages of ISDN signaling to locations served by analogue
or digital facilities.
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553-2901-301 Standard 9.00 January 2002
The ISL interface is structured as a collection of analogue and/or digital
trunks, and can operate under two basic modes of operation: shared and
dedicated. Shared mode requires a PRI (either 30B+D, or nB+D) between
originating and terminating switches. The ISDN D-channel is used to provide
out-of-band signaling for both the ISDN and non-ISDN trunks. Dedicated
mode is appropriate when no PRI exists between originating and terminating
switches or when it is not desirable to share an ISDN D-channel as described
above. In this mode of operation, a dedicated D-channel is established
between originating and terminating switches. The signaling information for
the selected, non-ISDN trunks is transported through this link.
The signaling connection is a data circuit which can be established over a
leased line, multiplexed facilities, or an existing trunk circuit using standard
data communications equipment such as modems, multiplexers, or
Meridian 1 and Succession CSE 1000 data adapters.
In the case of a failure on this link, signaling operation reverts to conventional
inband signaling. This is a major advantage of the ISL interface.
Reverting to conventional trunk signaling
This feature handles ISL trunk calls by reverting to conventional trunk
signaling when the primary and backup D-channels become inactive.
When a primary and backup D-channel go down:
• established ISL calls remain established, regardless of the signaling
method used
• transient ISL calls that are set up using conventional trunk signaling are
not disturbed
• transient ISL calls that are set up by D-channel signalling are dropped.
The user must re-initiate the call. Then, conventional trunk signaling is
used if the D-channel remains inactive.
• ISL channels are not marked “maintenance busy”
There are two scenarios that can occur when a D-channel is re-established,
one with backup D-channel and one without.
/