Panasonic DBS 576 Manual Técnica

5-58

DBS 576 (USA) issued September 2001

576-50-700

Chapter 5. Key Telephone Features

Section 700 - Operation

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N/A

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FF1-0-03: Extension COS (Intercom Redialing)

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FF3: Extension COS

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Extension Class of Service (COS) determines whether Last Number Redial can be used for both 

intercom and CO calls or CO calls only.

The System provides three types of line appearances

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Direct Station Select (DSS) / Busy Lamp Field (BLF) Appearances

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Direct Line (DL) Appearances

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MCO Line Appearance

When a DSS/BLF key is programmed, it automatically provides one-touch dialing and DSS and BLF 

for the assigned extension numbers. If desired, the DSS/BLF key can also provide ring or delayed ring 

monitor. For example, you can set extension A as a DSS/BLF ringing key on extension B. When 

extension A rings, the LED of the DSS/BLF key on extension B flashes and the phone rings.

Ringing or delayed ringing can be set on extensions which have a BLF key. The LED of the DSS/BLF 

key flashes green during ringing and the display shows the BLF extension number.

When extension A is in use, the LED of the DSS/BLF key on extension B lights red. If one extension 

has the Call Forwarding or Do-Not-Disturb (DND) feature activated, the DSS/BLF key lights green.

1.   Lift the handset or press the ON/OFF key.

OR...
Press a vacant CO key or enter a trunk access code.

•   Outside dial tone
•   CO XXX displays (where XXX = trunk 

number)

2.   Press the REDIAL key.

Last number dialed displays

3.   Complete the call and replace the handset or press the ON/

OFF key.

Line key LED turns red, then goes off.