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Three basic system telephony configurations
This section provides a broad overview of the telephony setup for three of the most common office
telephone configurations.
Square system
This is a typical small-office setup, where all lines are available on any telephone. There may not
be a designated attendant.
Figure 50 Square system
Assigned all four lines/
appearance only
Incoming calls
1
Call comes in on a line.
2
Call rings and flashes at the Reception telephone (flashes, but no ring, on other telephones).
3
Receptionist answers and finds out who the call is for.
4
Receptionist calls or pages the person and tells them what line to pick up.
5
The person can pick up the call at any of the telephones.
Outgoing calls
1
User selects a line button and dials the number.
Assigned all four lines/
appearance only
Assigned all four lines/
appearance only
Planning your telephony services
CO line 1
CO line 2
CO line 3
CO line 4
Receptionist (optional)
Assigned all four lines/
appearance and ring
Programming Operations Guide
201
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