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Chapter 5. Key Telephone Features
Trunk Queuing
CPC-96, CPC-288, and CPC-576 All Versions
Description
When you try to originate a call by MCO (enter 9) and all outside lines in a trunk group are busy, the
System can call you when a line becomes free. Simply pick up the handset and dial the telephone
number when the Trunk Callback alert tone rings.
Operation
To set Trunk Queuing:
1. Lift the handset or press the ON/OFF key.
2. Press the CO line key or enter a trunk access code.
3. Enter the Callback Request code (default = 3.)
4. Press the ON/OFF key.
5. Wait for the Trunk Callback alert tone.
To respond to the Trunk Callback alert tone:
1. Lift the handset or press the ON/OFF key.
Hardware Requirements
•
N/A
Related Programming
•
FF1-2: Dial Plan
•
FF1-0-03: Extension COS (Trunk Queuing)
•
FF3: Extension COS
Considerations
•
Response to the Trunk Callback must be within 15 seconds or Trunk Queuing will be canceled.
•
The Trunk Queuing feature may also be used if you hear a busy tone when trying to make a call
using the MCO Trunk Access feature.
194
Action
Action
DBS 576 (USA), Revised 6/11/98
Section 700 - Operation
Result
Intercom dial tone
Busy tone
displays
Wait CBK-TRK
Result
• Outside dial tone
• CO XXX displays (where XXX = line
number
576-13-700
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