Answering machine
If you have a Voice Mail Module installed, a greeting is played to external callers and a
message can be recorded.
Auto Attendant
Callers can ring straight through to an extension if they know the extension number.
When the line is programmed with Auto attendant, the caller hears a message,
whereupon they can then dial the extension number. If the extension is busy, or the
number dialled is invalid, the call is then presented as an standard incoming call.
Call barring
Restrictions placed on an extension which prevent certain types of call being made from
that extension. The actual barring imposed is set by the Class of service programmed.
Call diversion
You can either divert all of your calls to ring at another extension, or you can set your
phone to divert calls if your extension is busy or if there is no answer.
Call logging
If a Call Logging Module is installed, you can enable call logging. This feature allows you
to print out records of calls made.
Call Logging Module
An add-on module, used for call logging by allowing a printer or PC to be connected
directly to BT Inspiration.
Call pickup
You can pick up an external call which is ringing either on a central bell or at another
extension by pressing the ‘External call pickup’ key or keying the code.
If ‘Pick up groups’ are programmed any extension in a group can answer all calls ringing
on another phone in the group by pressing ‘Call pickup’
Call transfer
You can transfer an incoming call which has rung at your extension to any other extension
within your system. How you do this depends on your type of telephone.
Camp on busy
If you get busy tone (engaged tone) when you call an extension, you can stay off hook
and when the called phone becomes free your extension will call the phone.
CCU (Central Control Unit)
This is the main wall-mounted unit of your system.
CDS (Caller Display Service )
This BT Network Service allows the callers number or name, if programmed, to be
displayed on the Featurephone.
Class of Service
Each extension may be programmed for a Class of service which determines the type of
call the extension is allowed to dial. There are four different Classes of service.
CLI ( Calling Line Identity)
This ISDN Network Service provides the number of the calling line to the called number.
CLIP (Calling Line Identification Presentation)
This ISDN Network Service allows the callers number or name, if programmed, to be
displayed on the Featurephones.
CLIR (Calling Line Identification Restriction)
This ISDN Network Service enables you to prevent your number being displayed to the
person you are calling.
COLP (Connected Line Identification Presentation)
This ISDN Network Service enables the number of the phone which answers a call to be
displayed to the caller.
COLR (Connected Line Identification Restriction)
This ISDN Network Service prevents the transmission of the number of the phone which
answers a call.
Courtesy service
Provides a courtesy greeting when a phone is not answered within a programmed time.
DDI (Direct Dialling In)
This ISDN Network Service enables extensions to be dialled directly. See MSN as an
alternative service providing the same capability.
Display message
One of nine messages that can be displayed to any Featurephone calling your extension.
You can set an advisory message from an standard telephone, although you cannot
check its content. You can also set your own message if you wish.
DND (Do Not Disturb)
A feature which allows you to set your extension so that it does not receive any calls.
ENBLOC
A method of keying where the digits may be entered and edited prior to sending them to
line.
Enquiry call
This enables you to place an external call on hold while you call and speak to an
extension, then return to the original call.
Fax detect
If you have a dedicated fax number, you can program your system to distinguish between
incoming fax and voice calls. This will operate only on calls containing the initial fax tone,
otherwise you have to answer the call manually then transfer to the fax extension.
Featurephone
A special telephone with a built-in display, which incorporates a number of features and
facilities not available to users of standard telephones.
Handsfree
A facility which allows you to make or receive calls without lifting the handset.
Handsfree answerback
When handsfree answerback mode of operation is selected internal calls are answered
automatically. You can speak to the caller without touching the phone.
Hybrid
A PABX which can be used with all calls coming in via an operator, or as a key system
which requires no operator, or as a mixture of the two.
ISDN (Integrated services digital Network)
A digital exchange line enabling voice, data, still images and video communication to be
transmitted simultaneously.
Key system
A small telephone system in which each extension has keys enabling it to act as a mini-
switchboard.
Last Number Redial
A facility which enables you to redial the last number you dialled by pressing just one key.
LD (Loop Disconnect)
A system of pulse dialling. This type of signalling is used only in the older type of phone,
now rapidly being replaced.
Message light
A large light located on the top right hand corner of the phone. It lights steadily to
indicate voice messages have been left.
Message waiting
A voice message has been left on the voice messaging system. This is indicated by the
MESSAGE light on a Featurephone.
MF (Multi-frequency)
Tone keying. This gives much faster connection than LD and is used by the majority of
telephones. You need tone keying to access BT’s Select Services.
MOH (Music on Hold)
The system plays music to callers who have been put on hold.
MSN (Multiple Subscriber Number)1
Your network provider may provide you with up to 10 individual numbers on each ISDN2
line. These numbers may be used to route calls directly to extensions or other ISDN
devices.
MUTE key
This key switches between receive only (mute) and normal two-way transmission. With
mute switched on, the microphone is electronically disconnected, allowing you to hold a
conversation with a colleague, for example, without the other party being able to hear,
and without putting them on Hold. (This works in the same way as the Secrecy key on
many modern phones.)
Night service
Night service allows you to program a different set of call restrictions, and ringing. You
can set the time at which these changes will come into effect, and the time at which day
service will resume.
PABX
Private Automatic Branch Exchange.
Pause key
When programming a speed dial number, you may insert a pause of 1.5 seconds between
digits by using the Pause display key.
PIN (Personal Identification Number)
The system PIN is a four-digit number which must be entered in order to gain access to
the system for programming purposes. This number can be changed.
Each extension has separate PINs for Voice mail and extension lock.
Programming extension
In default, extension 20 is the main programming position, but this can be changed.
Certain activities may only be carried out by the main programming extension. These are :
Setting day service/night service manually, controlling Answering machine, Recording the
personalised voice greeting, Setting the personalised voice greeting.
PSTN
Public Switched Telephone Network.
Select Services
BT’s Select Services give you access to many advanced features which are not available
as standard options on the telephone network.
Speed dialling
Speed dialling enables you to dial frequently-used numbers using two- or four-digit
codes, or by pressing a single key. There are two types of speed dial numbers: system
numbers, which are programmed into locations on the system, and personal numbers,
which you can program onto your phone.
Standard telephone
A phone which is which can be directly connected to a PSTN line.
Time break recall
A measured time break in the line to inform a PABX that a user wishes to hold or transfer
a call.
Voice Mail
An add on module which can be used to provide Voice mail boxes, answering machine,
auto attendant and Customised Courtesy services.
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Glossary
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