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Section 700 - Operation Chapter 5. Key Telephone Features
576-13-700 DBS 576 (USA), Revised 6/11/98 165
Considerations
• If several calls arrive at a DSS/BLF key, the calls are queued and ring on a first-in, first-out basis.
• If a BLF key has a second call while busy and off- hook signaling is enabled, the BLF key starts
blinking. The call can be answered by pressing the BLF key or going on hook and then off hook.
Direct Line Appearances
CPC-96, CPC-288, and CPC-576 All Versions
Direct Line (DL) keys are used to originate and receive calls over specific trunk numbers (DL keys
can be assigned to any trunk number).
The LED for a DL key will flash red on an incoming call even if the CO line is set to ring. If another
extension answers the call, the LED on the telephone will light solid red.
Operation
Hardware Requirements
•N/A
Related Programming
• FF4: Key Assignment
Considerations
•N/A
Multi-CO (MCO) Appearances
CPC-96, CPC-288, and CPC-576 All Versions
Description
You can make and receive CO line calls using a Multi-CO (MCO) key. Each extension can have up to
5 MCO keys.
An MCO key can be assigned to any of the pooled trunk groups. Pressing the MCO key is the same as
dialing the MCO Access Code (usually 9, 81-84).
Operation Action
To originate a trunk call... 1. Press an idle
DL
key.
2. The key blinks green as the call is made.
To place a call on Exclusive Trunk Hold (page 133)... 1. Press the
DL
key.
To place a call on System Trunk Hold (page 133)... 1. Press the
HOLD
key.
To transfer a call... 1. Press the
HOLD
key.
2. Dial the destination extension.
3. Press the
PROG
key.