Avaya Communication Manager Administrator's Manual page 727

COR
The COR is administered so that only an administered connection (AC) endpoint can be
connected to another AC endpoint.
Valid entries
0 to 995
COS
The COS is administered (see
Forwarding All Calls feature for access endpoints is prohibited.
Valid entries
0 to 15
Extension
A display-only field showing the extension number as specified in the command line, or shows
the next available extension number if next was entered on the command line. This is the
extension number assigned to the nonsignaling trunk and used to access the trunk endpoint.
Usage
Enter the appropriate class of restriction (COR) number.
Class of Service
Usage
Enter the appropriate COS number.
on page 827) so that the use of the Call
Access Endpoint
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