Nortel Modular Ics 6.1 System Coordinator Guide

							Telephone features / 201
P0603535  02 Modular ICS 6.1 System Coordinator Guide
Do Not Disturb prevents voice calls from alerting at your 
telephone. Voice calls are presented as normal intercom calls .
Using Background Music
²¡ß
Use this feature to active the optional music feature. You will 
hear whatever music source is attached to the Modular ICS.
Your installer or service representative makes this feature 
available to all telephones in programming. You need to 
supply a music source, such as a radio, and have it attached to 
your ICS.
Turning Background Music off
The music stops automatically if you make or answer a call, or 
press ²£¡ßto turn it off.
Tip - Norstar and BST telephones that are members of a 
Hunt Group can temporarily leave a Hunt Group by 
activating this feature. Hunt Group calls arriving while a 
telephone is in Do Not Disturb mode are routed to the next 
member in the Hunt Group. For more information about Hunt 
Groups, see Programming Hunt Groups on page 169.
In accordance with U.S. copyright law, a license 
may be required from the American Society of 
Composers, Authors and Publishers or a similar 
organization if radio or TV broadcasts are 
transmitted through the Background Music feature 
of this telecommunication system.
Nortel Networks hereby disclaims any liability 
arising out of the failure to obtain such a license. 
						

							202 / Telephone features
Modular ICS 6.1 System Coordinator Guide P0603535  02 
						

							P0603535  02 Modular ICS 6.1 System Coordinator Guide
ISDN PRI and BRI
Integrated Services Digital Network (ISDN) technology 
provides a fast, accurate and reliable means of sending and 
receiving data, image text and voice information through the 
telephone system. 
By using Primary Rate Interface (PRI) or Basic Rate Interface 
(BRI), your ISDN service allows for faster transmission 
speeds and the addition of a variety of powerful business 
applications, including remote LAN access, 
videoconferencing, file transfer and Internet access.
Your installer configures ISDN services and terminal 
equipment. 
ISDN PRI
PRI is economical because separate analog trunks and data 
circuits are not needed for Direct Inward Dialing (DID), Direct 
Outward Dialing (DOD), and data transfer.
With PRI there is greater flexibility because B channels can be 
dynamically reconfigured to accommodate changes in traffic 
with the Call by Call feature. For more information, see Call 
by Call service selection for PRI on page 206.
PRI offers fast information access because channel usage is 
optimized to allow you the full benefit of available bandwidth 
and real-time connectivity.
PRI lines are configured as DID lines. Incoming calls on a PRI 
line can appear on a DID button or on an intercom button 
depending on how your target lines are assigned to the 
telephones. Outgoing calls are made using the intercom 
buttons. 
						

							204 / ISDN PRI and BRI
Modular ICS 6.1 System Coordinator Guide P0603535  02
PRI lines can be accessed from all devices such as Norstar 
telephones, Business Series Terminals (BST telephones), 
ISDN sets, and wireless  handsets.
ISDN PRI features
Selected ISDN network features can be used from a Norstar 
telephone. Your central office switch (ISDN network) 
determines which features are available to you.
Network Name Display for PRI
Your Norstar system displays the name of an incoming call 
when it is available from the service provider. Name 
information can be displayed on a Norstar or BST telephone, 
but not on an ISDN terminal. If the Calling Party Name has the 
status of private, it may be displayed as Private name. If the 
Calling Party Name is unavailable, it may be displayed as 
Unknown name.
Your Norstar system displays the name of the called party on 
an outgoing call, when it is provided by your service provider.
The Business Name concatenates with the set name on an 
outgoing call. This can only occur if the Business Name has 
been programmed.
The available features include:
receiving Connected Name
receiving Calling Name
receiving Redirected Name
sending Connected Name
sending Calling Party Name 
						

							ISDN PRI and BRI / 205
P0603535  02 Modular ICS 6.1 System Coordinator Guide
Consult your customer service representative to determine 
which of these features is compatible with your service 
provider.
Name and number blocking for PRI
When activated, ²¡Úá allows you to block the 
outgoing name and/or number on a per-call basis. Name and 
number blocking can be used with a Norstar or BST telephone, 
but not with an ISDN terminal.
Consult your customer service representative to determine 
whether or not this feature is compatible with your provider.
Emergency 911 Dialing
Modular ICS 6.1 with the ISDN PRI feature is capable of 
transmitting the telephone number and internal extension 
number of a calling station dialing 911 to the Public Switched 
Telephone Network. State and local requirements for support 
of Emergency 911 Dialing service by Customer Premises 
Equipment vary. Consult your local telecommunications 
service provider regarding compliance with applicable laws 
and regulations.
If transmission of internal extension numbers is not required or 
desired, then it is recommended that the System Coordinator 
maintain a site map or location directory that allows 
emergency personnel to rapidly locate a Norstar  or BST 
telephone, given its DID number. This list should be kept up 
to date and readily available, and can be included with the 
Programming Record.
Two-way DID
With PRI, the same lines can be used for receiving direct 
inward dialing (DID) and for making direct outward dialing 
(DOD) calls. 
						

							206 / ISDN PRI and BRI
Modular ICS 6.1 System Coordinator Guide P0603535  02
The dialing plan determines how calls are routed.
Consult your customer service representative to determine 
whether or not this feature is compatible with your service 
provider.
Call by Call service selection for PRI
PRI lines can be dynamically allocated to different service 
types with the Call by Call feature. PRI lines do not have to be 
pre-allocated to a given service type.
Call types that may be available, depending on your service 
provider are:
PublicPublic calls connect your telephone with a 
Central Office (CO). DID and DOD calls are 
supported.
PrivatePrivate calls connect your  telephone with a 
private network. DID and DOD calls are 
supported. A private dialing plan may be used.
TieTie lines are private incoming and outgoing 
lines that connect Private Branch Exchanges 
(PBX) such as Norstar.
FXForeign Exchange calls connect your telephone 
to a remote CO. It provides the equivalent of 
local service at the distant exchange.
OutwatsOutwats is for outgoing calls. This allows you 
to originate calls to telephones in a specific 
geographical area called a zone or band. 
Typically a flat monthly fee is charged for this 
service. 
						

							ISDN PRI and BRI / 207
P0603535  02 Modular ICS 6.1 System Coordinator Guide
Consult your customer service representative to determine 
whether or not this feature is compatible with your provider.
Dialing Plan and PRI
The Dialing Plan supports PRI connectivity to public and 
private networks. The dialing plan is a collection of features 
responsible for processing and routing incoming and outgoing 
calls. All PRI calls must go through a dialing plan.
The Dialing Plan 
allows incoming calls to be routed to telephones, based on 
service type and digits received
allows Enbloc dialing by buffering user-dialed digits until 
a complete DN has been dialed
provides the ability to map user-dialed digits to a service 
type on a Call by Call basis
allows long distance carrier selection via user-dialed 
Carrier Access Codes
Depending on the type of dialing plan chosen, you may also 
need to specify a Private DN length so the system knows when 
the user has completed dialing. 
Refer to the Networking chapter in the Modular ICS 6.1 
Installer Guide for more details about dialing plans. Consult 
your customer service representative to determine how your 
dialing plan is configured.
InwatsInwats is a type of long distance service which 
allows you to receive calls originating within 
specified areas without a charge to the caller. A 
toll-free number is assigned to allow for 
reversed billing. 
						

							208 / ISDN PRI and BRI
Modular ICS 6.1 System Coordinator Guide P0603535  02
ISDN BRI
Modular ICS 6.1 supports a maximum of 30 ISDN sets on the 
system.
The following ISDN services are supported:
incoming calls
outgoing calls
Calling Line Identification Presentation (CLID)
sub-addressing
bearer capabilities
teleservices
The Call Forward All Calls feature can be used from ISDN 
terminals connected to Modular ICS.
Note:  Norstar and BST telephones can accept voice calls 
only. Video and data calls do not alert at a Norstar or 
BST telephone.
Although an ISDN S-loop or LT-loop can support up to eight 
devices, the loop has a limit of two B-channels. If both B-
channels are in use, other devices on that loop cannot make or 
receive calls until a B-channel is available, or until both 
B-channels are available, in the case of a video terminal. Thus, 
the number of terminals installed must take into account 
whether you require dedicated access for the terminals on that 
loop.
Note:  System telephone features, other than Transfer and Call 
Forward All Calls, are not available to ISDN terminals. 
In addition, you cannot retrieve a parked call, or reach 
a Direct-Dial set by using the Direct-Dial digit from an 
ISDN terminal. 
						

							ISDN PRI and BRI / 209
P0603535  02 Modular ICS 6.1 System Coordinator Guide
Line access fro m an ISDN terminal
ISDN terminals do not have line keys or intercom keys, as do 
Norstar telephones and Business Series Terminals. To make 
an outgoing call from an ISDN terminal, access an external 
line by entering a line pool code or by using the ARS feature.
ISDN BRI feat ures
Selected ISDN network features can be used from a Norstar or 
BST telephone. Your central office switch (ISDN network) 
determines which features are available to you.
Network Name Display for BRI
Your Norstar system displays the name of an incoming call 
when it is available from the service provider. Name 
information can be displayed on a Norstar or BST telephone, 
but not on an ISDN terminal. If the Calling Party Name has the 
status of private it may be displayed as Private name. If the 
Calling Party Name is unavailable it may be displayed as 
Unknown name.
Your Norstar system displays the name of the called party on 
an outgoing call, when it is provided by your service provider.
As with PRI, your Norstar system sends the Business Name 
concatenated with the set name on an outgoing call, but only if 
a Business Name has been entered for the set.
The available features include:
receiving connected name
receiving calling name
receiving redirected name
sending connected name
sending calling party name 
						

							210 / ISDN PRI and BRI
Modular ICS 6.1 System Coordinator Guide P0603535  02
Consult your customer service representative to determine 
whether or not this feature is compatible with your service 
provider.
Name and number blocking for BRI
When activated, ²¡Úá allows you to block the 
outgoing name and/or number on a per-call basis. Name and 
number blocking can be used with a Norstar set but not with 
an ISDN terminal.
Consult your customer service representative to determine 
whether or not this feature is compatible with your service 
provider.
Service provider features
Consult your customer service representative to determine if 
the new ISDN features are supported with your service 
provider.
Call Forward
Call Forward allows you to forward your calls to an external 
telephone number. 
1. Select an ISDN line by selecting a line button, a line pool, 
or the handsfree button, or by lifting the handset (if an 
ISDN line is your prime line).
2. Consult your service provider for the appropriate feature 
code to enter on your dialpad. Listen for three tones 
followed by dial tone.
3. Enter the internal number of the telephone to which you 
want your calls forwarded. If the call is answered, stay on