4.7 COS Programming
Extension-to-Outside Line Call Duration Limit
502
4-112 System Programming
Description This program allows you to restrict the duration of outside calls on
a Class of Service (COS) basis.
Selection • COS number: 1 through 8, ( =all COS)
• Disable (no limit) / Enable (limit)
Default All COS – Disable
Programming 1. Enter 502.
Display: 502 EXT-CO TIMER
2. Press NEXT.
Display: COS NO?→
3. Enter a COS number.
To enter COS number 1, you can also press NEXT.
Display example: COS1:Disable
4. Keep pressing SELECT until the desired selection is
displayed.
5. Press STORE.
6. To program another COS, press NEXT or PREV, or
SELECT and the desired COS number.
7. Repeat steps 4 through 6.
8. Press END.
Conditions • An outside call originated or answered by the programmed extension
user is disconnected when the time specified in program [205]
“Extension-to-Outside Line Call Duration Time” expires.
• Extensions in limited classes cannot establish an outside-to-outside call,
that is, cannot transfer / forward an outside call to another CO line or
perform an Unattended Conference.
• To assign all COS to one selection, press the key in step 3. In this
case, the display shows the contents programmed for COS 1.
• Program [601] “Class of Service” is used to assign a Class of Service to
each extension.
• Program [990] “System Additional Information, Field (12)” is used to
program Limited Call Duration to be done for outgoing calls only.
Feature References Section 3, Features
Call Forwarding – to Outside Line Conference, Unattended
Call Transfer, Screened – to Outside Line Limited Call Duration
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