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Button, Loop-CO (L-CO)
Description
All CO lines can be assigned to a flexible CO button on a digital proprietary telephone (DPT).
The assigned button serves as a Loop-CO (L-CO) button. An incoming call on any CO line
arrives at the L-CO, unless there is an S-CO button associated with the line or unless the button
is already in use. To make an outside call, the DPT user can simply press the dedicated L-CO
button.
Conditions
• No L-CO button is originally provided on a DPT. A flexible CO button can be assigned as
an L-CO button in either System or Station Programming.
• Pressing the L-CO button provides the same operation as entering the automatic line access
code.
• Immediate, delayed, no ringing or no incoming call (disable) can be selected on an
extension-CO line basis.
• The digital proprietary telephone user can choose a desired ringer frequency for each L-CO
button by System or Station Programming.
Programming Guide References
• [005] Flexible CO Button/PF Key Assignment
• [400] CO Port Connection Assignment
• [605-606] Outgoing Permitted CO Line Assignment — Day/Night
Features Guide References
• Answering, Direct CO Line
• Line Access, Automatic
• Line Access, Direct
• Ringing Tone Selection for CO Buttons
User Manual References
• 2.2.1 Basic Calling
• 2.3.1 Answering Calls
• 4.1.3 Customising the Buttons
Features Guide
General Features
37
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