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2
INTRODUCTION
This Mini-PBX is designed to provide a low cost professional telephone switching system.
Up to 3 external analogue telephone lines and up to 8 internal extensions can be connected.
2.1
FEATURES
•
Operator Attendant Mode –allows an 'operator' or one designated extension to
answer all incoming calls
•
Auto-Attendant Mode – allows the external caller to dial the desired extension or
operator directly.
•
Call transfer – allows the extension to transfer an external call to another extension
•
Call Pick Up – allows a non ringing extension to answer a call to another extension.
•
Music on hold with internal or external source option
•
External CO Line Ring assignment – any extension(s) can be assigned to ring when
there is an external call.
•
Flexible numbering of extensions – any extension can be allocated any 'extension
number' in the range from 100 to 999.
•
Seven levels of call restriction – controls what numbers an extension can dial – i.e.
no International calls without permission
•
Call duration control – limits the time a person can be on a call
•
Power failure transfer of external CO lines to fixed internal extensions – can still
make and receive calls in case of power outage (limited service)
•
Three-way conference – an external caller can speak to two internal extensions at
the same time.
•
Intercom communication – call from one extension to another (not using external
telephone network, so no charge)
•
Multiple communication paths
•
Call forwarding – a user can program their extension to forward an external or
internal call to another telephone extension.
•
Door Phone and Door Lock Opener (optional)
•
Computer interface for Call Accounting package (optional)
2.1.1
GLOSSARY OF TERMS USED
CO
Central Office or Local telephone Exchange
DTMF
Dual Tone Multi Frequency: Tones used for dialing.
DISA
Direct Inward System Access to internal extensions
7
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