Nortel Modular Ics 6.0 Installer Guide

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Advanced Private Networking
There are two ways of setting up dialing plans for an 
Advanced Private Network (APN). 
The first method uses routing tables to interconnected 
systems. This type of network may use SL-1 lines, but it 
does not use the MCDN protocol, even though the MCDN 
keycode is require to allow the use of PRI SL-1 lines. 
The second method allows you to network among other 
Norstar systems, Meridian systems, and Business 
Communications Manager systems using SL-1 lines and 
the MCDN protocol. This system uses the private dialing 
plans in the same way as the Private Network Tandem 
Calling network does. However, if you are using a Norstar 
to support your central voice mail or call attendent, you 
must use a CDP dialing plan. The MCDN protocol 
provides additional features that support the central voice 
mail/Auto Attendant as well as system call routing.
Networking using routing codes
If you have a simple private network, composed of one central 
Meridian 1 and two smaller sites with Norstar systems, you 
can use routing codes to direct calls. The following example 
shows a Meridian 1, representing the head office, connected to 
several smaller branch offices.
In this network, only the head office has trunks connected to 
the public network. The branch offices access the public 
network via the private connection to the head office. This 
configuration allows for cost savings by consolidating the 
public access trunks. Users at all three locations access the 
public network by dialing 9, followed by the public number.  
						

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For example, a user in the west end branch might dial 9-555-
1212 (for a local call) or 9-1-613-555-1212 (for a long distance 
call). These public calls are routed to the Meridian 1 by the 
Norstar routing table. Routing tables at the Meridian 1 will 
then select an appropriate public facility for the call.
Private network calls are made by dialing a four-digit private 
network DN. For example, if a user in the west end branch 
wishes to call a user in the east end branch within the private 
network, they dial 6221.
Private networking using routing tables
Routing network settings
HeadingParameterSetting 
West End:
HardwareCard 1PRI
Meridian 1Meridian 1
West end Branch
East-end Branch
Network #: 2221
    Recd #: 2221
 Internal #: 2221Network #: 6221
    Recd #: 6221
 Internal #: 6221
Meridian M1 PRI (SL-1)PRI (SL-1)
DN: 4221
Central
OfficePRI (public protocol)
West-end branchEast-end branch
Network #: 2221
Rec’d #: 2221
Internal #: 2221Network #: 6221
Rec’d #: 6221
Internal #: 6221
PRI SL-1PRI SL-1Meridian M1
DN: 4221
PRI (public protocol)
Central 
Office 
						

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ProtocolSL-1
BchanSeqAscend
ClockSrcPrimary
Trk/Line DataLine 245Target line
Rec’d #2221
Line AccessDN 2221L245:Ring only
Line pool accessLine pool PRI-A
To Head Office:
Routing ServiceRoute001
DialOutNo numbr
UsePool PRI-A
DN typePrivate
DestCode4
Normal rte001
Absorb0
To East End:
Routing ServiceDestCode6
Normal rte001
Absorb0
To Public Network:
Routing ServiceRoute002
DialOutNo numbr
UsePool PRI-A
DN typePublic
DestCode9
Normal rte002
Absorb0
East End:
HardwareCard 1PRI
ProtocolSL-1
BchanSeqAscend
ClockSrcPrimary
Trk/Line DataLine 245Target line
HeadingParameterSetting  
						

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Additional Configuration
In this example, outgoing public network calls dialed from a 
Norstar telephone are passed to the Meridian 1, and the 
Meridian 1 is responsible for seizing a public trunk. For this 
reason, the 
9 prefix is left in the number passed to the Meridian 1.
This necessitates that the Pu blic DN lengths table on each 
Norstar be modified to account for the extra leading digit. 
Rec’d #6221
Line AccessDN 6221L245:Ring only
Line pool accessLine pool PRI-A
To Head Office:
Routing ServiceRoute001
DialOutNo numbr
UsePool PRI-A
DN typePrivate
DestCode4
Normal rte001
Absorb0
To West End:
Routing ServiceDestCode2
Normal rte001
Absorb0
To Public Network:
Routing ServiceRoute002
DialOutNo numbr
UsePool PRI-A
DN typePublic
DestCode9
Normal rte002
Absorb0
HeadingParameterSetting  
						

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Essentially, the eight pre-configured entries are modified to 
include a leading 9 in the prefix digits, and the length value for 
each entry is increased by one. 
The new entries are listed below.
Carrier codes:
If a system has a different long-distance service from the local 
service, or if the long-distance service changes within the 
schedules, the routing tables can be set up to include a carrier 
code. You define the code under System Programming/
Access codes/Carrier codes. You then refer this to the 
routing tables in Services/Routing Service/route/
Carrier codes where you define it as part of the destination 
code, or part or all of the DialOut string when you set up a 
routing service schedule.
Meridian M1 Configuration:
Meridian M1 is the timing master for the private network 
PRI connections.
Meridian M1 uses descending mode for PRI B-channel 
selection.
Prefix Length
Default 8
90 12
900 13
901 18
9011 19
91 12
9411 4
9911 4 
						

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The Meridian M1 must recognize calls dialed to 2xxx and 
6xxx numbers, and route the call over PRI to either the 
East or West end offices. The same applies to incoming 
DID calls from the public network.
The Meridian M1 must recognize numbers starting with 9 
as public numbers, whether the numbers are dialed by 
Meridian M1 users or by Norstar users.
MCDN Private Networking
When you use MCDN on your private network, you gain the 
advantages of being able to use a central voice mail/Auto 
Attendant system to service the entire network, as well as 
gaining advanced system network features, which keep 
network traffic flowing along the most efficient paths.
MCDN networking uses PRI SL-1 lines and the MCDN 
protocol firmware. You need keycodes for each of these 
features.
To set up calling over an MCDN network, you define a dialing 
plan that allows the user on any system to experience 
consistent dialing strings for internal and external calls. For 
this type of network, the DNs need to be the same length, but 
they do not have to be unique to the entire network.
If your network is connected to a Meridian 1, and it is the 
Meridian that you are using for centralized voice mail and 
Auto Attendant, you can use either a UDP or CDP dialing 
plan.
If you use UDP, you dial a unique location code with the 
local telephone DN range.
In the case of CDP, the first digit of the DN range denotes 
the node and is unique to each system. 
						

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However, if you are using a Norstar voice mail/Auto 
Attendant for your centralized voice mail, you must create the 
calling protocols on the network using CDP. This is a private 
dialing plan where the first digit of the extensions for each 
system is unique to that system, and all DNs on all systems are 
the same length.
Using a UDP dialing plan
To use UDP, the user dials this combination: ACn+LOC+DN 
(private or public ACcess code, LOCation code, Directory 
Number)
UDP call scenarios
Call scenarioLOCDialing String
Calling Party 
NumberCalled Party 
Number
Calling to another 
site within the 
network244*6-668-2222244-1111668-2222
Calling within the 
node496222911112229
Calling the public 
network244**9-599-9999613-763-1111 
(OLI Public DN)599-9999
LOC: This code defines the particular Norstar system.
* Private Access Code (within network)
**Public Access Code (out to PSTN)
PRI trunks set 
to SL-1 Norstar
LOC 244
telephone DN: 1111
Public
Network
Meridian 1
Voice Mail/
Auto Attendant
Norstar
LOC 496
set DN: 2229
set DN: 2111
External set
set DN: 613-599-9999
A
B
C
PRI trunks set 
to SL-1 
						

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UDP call routing
HeadingParameterSetting 
A:
HardwareCard 1PRI
ProtocolSL-1
BchanSeqAscend
ClockSrcPrimary
Trk/Line DataLine 245Target line
Rec’d #1111
Line AccessDN 1111L245:Ring only
Line pool accessLine pool PRI-A
Dialing PlanPrivateUDP
PrivNetID1
Loc Code244
Priv DN len7
To C:
Routing ServiceRoute001
DialOutNo numbr
UsePool PRI-A
DN typePrivate
DestCode4
Normal rte001
Absorb0
Access CodesPrivAccCode4
To B:
Routing ServiceDestCode6
Normal rte001
Absorb0
Access CodesPrivAccCode6
To Public Network:
Routing ServiceRoute002
DialOutNo numbr
UsePool PRI-A 
						

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DN typePublic
DestCode9
Normal rte002
Absorb0
Access CodesPrivAccCode9
B:
HardwareCard 1PRI
ProtocolSL-1
BchanSeqAscend
ClockSrcPrimary
Trk/Line DataLine 245Target line
Rec’d #2229
Line AccessDN 2229L245:Ring only
Line pool accessLine pool PRI-A
Dialing PlanPrivateUDP
PrivNetID2
Loc Code496
Priv DN len7
To C:
Routing ServiceRoute001
DialOutNo numbr
UsePool PRI-A
DN typePrivate
DestCode4
Normal rte001
Absorb0
Access CodesPrivAccCode4
To A:
Routing ServiceDestCode2
Normal rte001
Absorb0
Access CodesPrivAccCode2
HeadingParameterSetting  
						

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Using a CDP dialing plan
To use CDP, the user dials the internal DN for the target 
telephone. Each node DN range starts with a unique digit.
To Public Network:
Routing ServiceRoute002
DialOutNo numbr
UsePool PRI-A
DN typePublic
DestCode9
Normal rte002
Absorb0
Access CodesPrivAccCode9
HeadingParameterSetting 
SL-1 trunk Norstar
Steering code: 1
set DN: 1111
Public
Network
SL-1 trunks
NorstarVoice Mail/
Auto Attendant
Norstar
Steering code: 2
set DN: 2229
set DN: 2111
External set
set DN: 613-599-9999
A
BC