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Select lines to the public network
Liz in Memphis, needs to call long-distance to a client in New 
York. She selects a tie-line to the branch office in New York. 
After hearing the dial tone, she dials a line pool access code to 
select a line to the public network. Then, she dials the external 
number as a local call.
Using a Tie line and line pool to call remote PSTN
Hardware: ICS, a Trunk Module with an E&M/DISA Trunk 
Cartridge or DTI with an E&M line. 
HeadingParameterSetting 
Incoming trunk:
Trk/Line DataLine 049
Ans modeE&M
Auto
Under Lines /
Restrictions and 
Remote accessDefine restriction filters and remote 
access packages. Assign a remote 
restriction and remote package to the 
trunk.
Outgoing trunk:
Trk/Line Data
Line 001
Line typeLoop
Pool B
Access codesLine pool B73 (can be one to four digits)
 
client in New YorkLiz in Memphis
New York
Liz in Memphis
key system Norstar Central OfficeNew York
E&MLoop startclient in New York 
						

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Select E&M trunks to the private network
For a confidential call, the Montana sales manager presses the 
line button for a private E&M trunk to the Oregon office. This 
automatically alerts at the line appearance on the telephone of 
the Oregon sales manager.
Using private E&M trunks for remote calls
Hardware: (for both systems) ICS, a Trunk Module with an 
E&M/DISA Trunk Cartridge or a DTI with an E&M line. 
Lines /
RestrictionsAssign a restriction filter to the line.
HeadingParameterSetting 
Montana:
Outgoing trunk:
Trunk Data 
(Line 049)
Line Data
(Line 049)Line
Line typeE&M
Private to 372
HeadingParameterSetting 
 
Montana
sales manager
(372)Oregon
sales manager
(641)
NorstarNorstar E&M 
						

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Norstar Line Redirection feature
The branch office is receiving more calls than it can handle, so 
it redirects one of its lines to the main office. All calls that 
come in on target line 232 will be routed out on line 003 to the 
main office. Whenever a call is redirected, the target line and 
outgoing line will be busy for the duration of the call. 
Line redirection routes
Hardware: ICS, an E&M/DISA Trunk Cartridge if the 
incoming trunk is E&M or a DID Trunk Cartridge if the 
incoming trunk is DID, or a DTI with one E&M line or one 
DID line.
Oregon:
Incoming trunk: 
Trunk Data
(Line 057)Line
Ans mode
Line typeE&M
Manual
Private to 641
HeadingParameterSetting 
 
target line
232Branch office Main office
Norstar Norstarline 3
incoming call
redirected
call 
						

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Tips - Any line appearance on a telephone can be selected 
as the incoming line to be redirected. Restriction filter 
restrictions on the line are checked against the filter in effect 
at the time a call is redirected not when redirection is 
programmed. 
A target line cannot be selected as the outgoing line for 
redirection.
The incoming trunk must have disconnect supervision. 
HeadingParameterSetting 
Incoming trunk:
Trk/Line DataLine 001: 
Trunk mode: 
Ans mode: 
OR
Line 049:
OR
Line 053: 
Ans mode:
Recd #: 
(for target line 232)Loop
Super
Auto
DID
E&M
Auto
4321
Recd # lengthRecd # length: four digits (can be from 
three to seven digits, but 
must match number of 
digits sent by central 
office)
Outgoing trunk:
Trk/Line DataLine 003: 
OR
Line 054: Loop
E&M
CapabilitiesAllow redirect:Y 
						

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ETSI MCDN and network features
If your system is running Profile 2, and you are using ETSI 
PRI lines with SL-1 MCDN protocol to network your systems, 
your network has access to all the MCDN features described 
in the preceding sections. MCDN features are set up under 
Network Features, MCDN.
In addition, ETSI lines can provide the following CO network 
features. Availability of these features is first determined by 
your service provider, and secondly by turning on the features 
under Network Features, ETSI.
Network Call Diversion
Norstar Network Call Diversion (NCD) is a network function 
that allows forwarding and redirection of calls outside the 
Norstar network when using an ETSI ISDN line. Functionality 
is similar to that of External Call Forward (ECF).
NCD redirects calls using the same line on which they arrive. 
Call forward is efficient since there is no need for additional 
outside lines.
Forwarding calls externally from an extension requires the 
user to enter either a Destination Code or Line Pool Access 
Code, and the number to which calls will be forwarded.
Examples of NCD include:
redirecting all calls from an extension to a mobile phone
forwarding calls to an external destination (rather than to 
voicemail), when an extension is busy or the user is 
unavailable. 
						

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Allowing NCD
To use NCD, you must turn the feature on in Network 
Services. 
1. Press ‘ until the display reads System 
prgrming.
2. Press ≠. The display shows Hunt groups.
3. Press ‘ until the display shows Network 
Services.
4. Press ≠. The display shows Netwrk 
Redirection: N.
5. Press CHANGE
 and set to yes.
Feature description
NCD is available only over ETSI ISDN lines. It can be 
invoked when calls are presented to Norstar/BST extensions 
over ISDN lines. The user must program the selected 
extension. Refer to External call forwarding on page 44
NCD is integrated with the following existing Norstar Call 
Forward features:
Call Forward Unconditional (CFU)—implemented on 
Norstar Call Forward All Calls (CFAC) ²Ý, and 
Selective Line Redirection (SLR) ²¡Ý, also 
referred to as Line Redirection. This is programmable by 
the user. 
Call Forward on Busy (CFB)—implemented on Norstar 
Call Forward Busy.
Call Forward on No Response (CFNR)—implemented on 
Norstar Call Forward No Answer. 
						

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For example:
When a call comes in on ETSI ISDN and is returned to a 
destination being serviced by ETSI ISDN, BTNR 191, 
Analogue or DASS2 lines, then ETSI Call Forward (CFU, 
CFB or CFNR) is used.
When a call comes in on ETSI ISDN and is returned to a 
private network destination over DPNSS, then External 
Call Forward (ECF) is used.
When a call comes in on DPNSS 1 and is returned on any 
line type except DPNSS 1, ECF is used. If that call is 
returned over DPNSS, however, then DPNSS 1 Diversion 
(DIV) is used. Refer to Network Call Diversion on page 
165
When a call comes in on any other line type, such as 
AC15A, then again ECF is used. Note that under certain 
line conditions, ECF will not work; refer to Line 
Redirection restrictions.
Note:  In all cases, if NCD fails due to network errors or 
rejections, Norstar invokes ECF. If an outgoing line is 
unavailable, Norstar routes the call to the line’s prime 
extension.
Programming and restrictions
NCD features are accessed through existing Norstar features. 
Extensions requiring redirection must be programmed 
individually to either CFAC or SLR. CFB or CFNA must be 
set during programming. Allow redirect must be set to Yes
 
for each extension, in Terminals&Extns/Capabilities.
Note:  Any other programming applied to specific lines and 
extensions take precedence, for example 
Restrictions(extns) under Terminals&Extns. 
						

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NCD is used as long as the affected lines are ETSI ISDN, and 
the affected DIA lines are accessible via ISDN lines. Incoming 
calls are diverted back to the ISDN. If NCD fails due to 
network errors, ECF is invoked. If ECF cannot be executed, 
the incoming call is routed to the line’s prime extension.
An extension with CFB, CFNA and CFAC programmed will 
give priority to CFAC for diversion.
Selective Line Redirection
Selective Line Redirection (SLR), also referred to as Line 
Redirection, is enhanced for use with digital lines and operates 
in conjunction with NCD.
Diversion by SLR takes precedence over diversion by CFAC. 
An SLR line cannot be diverted by CFAC. If the call arrives 
on an extension with SLR programmed, a ring splash will 
sound (if programmed).
For information on SLR restrictions refer to Selective Line 
Redirection on page 168. For information on redirecting lines 
see Line Redirection in the Modular Plus System 
Administration Guide.
ATTENTION!
If a line is configured to appear on several 
extensions with redirection programmed, 
predicting which extension will divert the call is not 
possible. This should be considered during system 
configuration. 
						

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Programming Extensions
The User Interface for programming NCD is the same as for 
ECF.
Different types of Call Forward are available depending on the 
extension being programmed. Programming an extension to 
forward calls externally requires the user to enter a destination 
code or line pool number, in addition to the external phone 
number. Therefore, care should be taken to identify your 
network line types and record the available codes and line 
pools.
Enhanced Caller ID
When a Norstar/BST extension which has Call Line Identifier 
(CLID) active receives a redirected call due to NCD, the user 
will see the DN for the Calling Number. This is followed by a 
“>” and the redirecting number. This is displayed for as long 
as the call is active (alerting or answered) at that telephone.
If the alerting extension is not the CLID extension for that line, 
the line appearance can be pressed to briefly display the 
information. Pressing ²¡ÚÚ or INFO
 while the call is 
active invokes Call Info. Call Info on DPNSS displays the 
redirecting number and the reason for the redirection.
Note:  When Norstar requests that an incoming call be 
redirected by the distance network, Norstar does not 
inform the network of the redirecting DN. In this case, 
the diverted-to party will not see the diverting party 
DN. 
						

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Malicious caller identification (MCID)
The MCID feature allows you to use ²¡áà to have 
call information recorded on the central office system for an 
incoming call on a specific line (EUROISDN lines, only).
The user must invoke the feature code without hanging up, and 
within 30 seconds (time varies on different networks) after the 
caller hangs up.
Note:  This feature must be allowed in network programming 
to work. Check with your system administrator.
The following information registers on the network:
called party number
calling party number
local time and date of the invocation in the network serving 
the called user
service provider option: calling party subaddress, if 
provided by calling user)
Programming MCID capability
To allow MCID functionality on your system, you must turn 
the feature on in Network Services. 
1. Press ‘ until the display reads System 
prgrming.
2. Press ≠. The display shows Hunt groups.
3. Press ‘ until the display shows Network 
Services.
4. Press ≠. The display shows ETSI.