Nortel Modular Ics 6.1 Installer Guide

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If you are setting up a D-packet service, program the point-
of-sale terminal adapter or other D-packet service device 
with the appropriate TEI (provided by your service 
provider), terminal SPID, and DN by following the 
instructions that come with the device.
Programming ISDN PRI lines
When the configuration programming under Hardware is 
complete, your PRI lines are ready to be programmed. For 
information about programming your PRI lines, see Call by 
Call service selection for PRI on page 457.
Programming ISDN BRI lines
When the configuration programming under Hardware is 
complete, your BRI lines are ready to be programmed in the 
same way as analog lines. You can, for example, place them in 
pools and assign them to Norstar telephones, Business Series 
Terminals, or ISDN terminal equipment. 
However, there are some differences in the way BRI lines 
work that will influence how you configure them to handle 
incoming and outgoing calls.
• For BRI lines, in most cases, your service provider 
supplies two SPIDs – one for each B channel. Each SPID 
and one or more Network DNs are associated with a single 
line. Calls to a Network DN come in on a specific line. 
Pressing a line button selects the same line every time.
• If your service provider supplies you with a single SPID 
for both B channels, incoming and outgoing calls are 
handled according to the loop. The two lines provided by 
the BRI loop are pooled for both incoming and outgoing 
calls.  
						

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For example, if Loop 201 is programmed with a single 
SPID, which supports lines 001 and 002, incoming calls 
made to a Network DN associated with the SPID appear on 
either line 001 or line 002. If you press the line button for 
line 001, either line 001 or line 002 is selected. For loops 
which use a single SPID, assign both lines on a loop to a 
telephone to guarantee that all calls appear at the 
telephone.
Programming Direct Inward System Access (DISA) on 
PRI trunks
When a trunk cartridge is set to PRI, all lines on that trunk are 
set to Auto Answer without Direct Inward System Access 
(DISA). 
DISA can be accessed by one of two methods.
1) Define the DISA DN to match the trailing digits of the 
Called Party Number (CDN).
With Public, Private, and Tie service types, the CDN is 
simply truncated to the Target Line Receive Digit Length 
and is parsed to match the Target Line Receive Digits. 
DISA can be accessed by having the DISA DN match the 
trailing digits of the CDN. For example, with a Receive 
Digit Length = 4, and DISA DN = 1234, a call made to 
Public DN 763-1234 will be handled as follows:
• the ISDN setup message will contain a CDN of 763-1234
• the CDN will be truncated to the four digits, 1234
• 1234 matches the DISA DN
• the call will be answered with DISA
2) Use incoming Call by Call (CbC) Service routing to map the 
call type to the DISA DN. Refer to Programming Call by 
Call service selection on page 460 for more information. 
						

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With FX, INWATS, 900, and SDS service types, either a 
Service Id (SID) or a CDN is mapped to Target Line 
Receive Digits. 
This is programmed under Call-by-Call Routing. DISA 
may be accessed by having the SID or CDN map to the 
DISA DN. This example has a Receive Digit Length = 4, 
DISA DN = 1234, and CbC Routing with (Service Type = 
FX, Map from SID = 2, Map to digits = 1234).
A call presented to the Norstar system with service type 
FX and SID 2 will be handled as follows:
• The ISDN setup message will specify FX with SID = 2
• The FX SID = 2 will be mapped to DISA DN digits 1234
The call will be answered with DISA
Programming ISDN equipment
DTI cards configured as PRI support various applications that 
are enabled by PRI. For a list of the type of applications that 
are support, see ISDN applications on page 183.
Terminal equipment for BRI cards
ISDN devices and terminals connected to the ICS must be 
configured under the Hardware heading in system 
programming. You choose directory numbers for ISDN 
equipment from a pre-determined range of DNs (667-696). 
Any of the ISDN DNs can be assigned to any U-LT or S loop, 
but each can only be assigned to one loop and one device.
Devices on an S or LT loop (BRI cards only)
Terminal equipment using a U-LT loop or S loop must be 
assigned an ISDN directory number (ISDN DN). This allows 
the TE to be assigned lines and to communicate with other 
devices connected to the ICS. Each DN can be assigned to only 
one TE and one loop.  
						

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You assign ISDN DNs to S loops and LT loops under Assign 
DNs under Hardware. Each S or LT loop can be programmed 
with eight ISDN DNs, but you cannot exceed a total of 30 
ISDN DNs for the Modular ICS.
Once you have assigned ISDN DNs to a loop, designate one of 
the DNs as a Loop DN. The Loop DN acts as a main ISDN DN 
and completes the configuration of the loop.
The ISDN terminal equipment (TE) on the loop is also 
programmed with its ISDN DN. See the instructions that come 
with the ISDN device for information on how to program it to 
recognize the assigned DN. Most devices will require both a 
terminal service profile identifier (terminal SPID) and a DN, 
and some will require two terminal SPIDs and two ISDN DNs. 
The SPID used with the device should not be confused with a 
SPID used for network connections using an T or NT loop.
To create a terminal SPID for a device, add at least two zeros 
to the end of the ISDN DN. Add more zeros to the beginning 
or end of the ISDN DN until you have the length of SPID 
required by the TE. For example, if an ISDN telephone 
requires a six-digit SPID and has a DN of 667, its SPID is 
066700. If the same TE requires a minimum of 10 digits, the 
SPID is 0000066700. 
Most ISDN terminals require a five-digit SPID. An ISDN PC 
card usually requires a 10-digit SPID. Follow the directions 
that come with the ISDN device to program it with a SPID and 
ISDN DN. 
						

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Adding zeroes to SPIDs
The following table uses the example in the illustration to 
show the programming for the S loop.
SettingOption
Loop201
TypeS
SamplingFixed
DNs on Loop 201: 
Assign DNs667: Assigned
668: Assigned
669: Assigned
670: Assigned
Loop DN667
Inspect FORWARD CallersInspect FORWARD CallersMXPMXPInspect FORWARD CallersInspect FORWARD
 CallersMXPMXP
U-LTS
DN 275
SPID 0000027500
Loop DN 667
DN 669 (incoming)
SPID 0000066900
DN 670 (outgoing)
SPID 0000067000
DN 667
SPID 066700
Loop DN 669
DN 668
SPID 066800 
						

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ISDN router
By connecting an ISDN router to your Modular ICS, a group 
of PCs can share Internet access. This arrangement is best for 
a workplace where each personal computer occasionally uses 
an Internet connection. 
To support Internet access, you must order BRI lines from 
your service provider, and subscribe to an Internet service 
from an Internet service provider (ISP). Your personal 
computer must have an Internet browser and any applications 
supplied by your ISP.
D-packet service (BRI cards only)
The D-packet service supplied by the Modular ICS supports a 
point-of-sale terminal adapter (POSTA). Connecting a 
POSTA allows transaction terminals, such as devices where 
you swipe credit or debit cards, to transmit information using 
the D channel of the BRI line. At the same time, the B channels 
of the BRI line remain available for voice and data calls. A 
special adapter links transaction equipment, such as cash 
registers, credit card verification rigs, and point-of-sale 
terminals, to the X.25 network. This is a data communications 
network designed to transmit information in the form of small 
data packets.
ISDN
ICS
U-LT loopPCs with 
applications
ISDN router
LAN 
						

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To support the D-packet service, your ISDN network and 
financial institution must be equipped with a D-packet 
handler. To convert the protocol used by the transaction 
equipment to the X.25 protocol, your ISDN network must also 
be equipped with an integrated X.25 PAD. 
X.25 PAD works with the following versions of X.25: Datapac 
32011, CCITT, T3POS, ITT and API. The ISDN service 
package you order must include D-packet service, for 
example, Package P in the U.S. or Microlink™ with 
D-channel in Canada. 
Your service provider supplies a Terminal Endpoint Identifier 
(TEI) and a DN to support D-packet service. The TEI is a 
number between 00 and 63 in the U.S. In Canada, the default 
range is 21-63. Your service provider may also supply you 
with a DN to program your D-packet device. The DN for 
D-packet service becomes part of the dialing string used by the 
D-packet to call the packet handler.
POSTA for ISDN BRI
When you configure D-channel packet service, you are 
specifying the transmission path between an ISDN loop on the 
network side of the ICS and the ISDN loop on the telephone 
side. The telephone side loop is the loop used by the point-of-
sale terminal adapter. The service is turned on and configured 
using the network loop programming found under Hardware. 
Use NT loop for BRI-U2 and BRI-U4 cards and S or T loop 
for BRI-ST cards.
To set up D-packet service:
• go to the programming settings for the network loop under 
Hardware. (S, T, or NT loop)
• select the S loop or LT loop used by the POSTA 
						

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• enter the terminal endpoint identifiers (TEIs) supplied by 
your service provider
Point-of-sale terminal adapter
The point-of-sale terminal adapter is an analog device that 
connects to point-of-sale devices using an RS-232 interface 
and a U-LT loop. It handles the routing of packet information 
from the devices to the ICS and into the ISDN network. 
Your service provider, usually a financial institution, supplies 
you with information about the compatible controller, which 
handles the routing of packet information from the devices to 
the ICS and into the ISDN network. 
						

							P0603534  02Modular ICS 6.1 Installer Guide
Trunks and target lines
Trunks are external lines that provide the physical connection 
between a Norstar system and other systems in a private or 
public network. Trunks are numbered 001 to 156 in a fully 
expanded system. Norstar Modular ICS supports six different 
types of trunks:
• PRI trunks are used for incoming and outgoing calls over 
an ISDN network. PRI SL-1 lines can provide MCDN 
network functionality in a private network between other 
Norstar systems, Meridian 1 systems, or Business 
Communications Systems, if the appropriate software 
code has been installed.
• T1 trunks are digital trunks that can be configured to act as 
loop start, ground start, E&M, DID, or leased lines, 
depending on your requirements.
— DID trunks route incoming calls from the public 
network directly to telephones within Norstar, without 
an attendant.
— Loop start trunks handle incoming and outgoing calls 
between Norstar and the public network.
— E&M trunks handle incoming and outgoing traffic 
between the Norstar system and the private network.
• BRI trunks handle incoming and outgoing calls between 
Norstar and an ISDN network. 
• Target lines are virtual communication paths between 
trunks and telephones on the Norstar system. They are 
incoming lines only, and cannot be selected for outgoing 
calls. With 192 target lines in a fully expanded system, you 
can concentrate auto answer calls on fewer trunks. This 
type of concentration is an advantage of target lines. 
Norstar mapping allows you to direct each target line to  
						

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one or more telephones. Target lines are numbered 157 to 
348 in a fully expanded system, and 157 to 284 in all 
others.
Telephones can be configured to have an appearance of any 
type of trunk and line, including target lines, but excluding PRI 
trunks. If assigned, they are used for monitoring call usage.
Trunk operating modes (T1)
T1 trunks have four operating modes:
• ground start (T1 only)
• loopstart (analog and T1)
• E&M (analog and T1)
• DID (analog and T1)
Ground start trunks (T1 only)
Ground start trunks offer the same features as loop start trunks, 
but are used when the local service provider does not support 
disconnect supervision for the digital loop start trunks. Ground 
start trunks work with T1 only. 
By configuring lines as ground start, the system will be able to 
recognize when a call is released at the far end. 
Tips - You cannot change the trunk mode for a ground 
start trunk on a DTI. It always has disconnect supervision.
A DTI can provide a maximum of 24 ground start trunks. 
Analog ground start trunks are not supported.