Section 700 - Operation Chapter 5. Key Telephone Features
576-13-700 DBS 576 (USA), Revised 6/11/98 163
To automatically redial the last number dialed:
Hardware Requirements
•N/A
Related Programming
• FF1-0-03: Extension COS (Intercom Redialing)
• FF3: Extension COS
Considerations
• Extension Class of Service (COS) determines whether Last Number Redial can be used for both
intercom and CO calls or CO calls only.
Line Appearances
CPC-96, CPC-288, and CPC-576 All Versions
Description
The System provides three types of line appearances
• Direct Station Select (DSS) / Busy Lamp Field (BLF) Appearances
• Direct Line (DL) Appearances
• MCO Line Appearance

DSS/BLF Appearances

When a DSS/BLF key is programmed, it automatically provides one-touch dialing and DS S and B LF
for the assigned extension numbers. If desired, the DSS/BLF ke y can also provid e rin g or de layed r ing
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 . Th e 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.
Action Result
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.