COR Operation
Two definitions are critical to understanding COR operation. In mathematics, a set is a list of numbers or labels. A subset is a set whose members are wholly contained in another set. Applying these concepts makes understanding COR operation simple. Calls succeed as long as the outgoing COR list is a subset of the incoming COR list. Table 12-1 shows the relationship between incoming and outgoing COR lists.
|
Incoming COR List |
Outgoing COR List |
Result |
|---|---|---|
|
None |
None |
Call succeeds |
|
None |
Applied |
Call succeeds |
|
Applied |
None |
Call succeeds |
|
Applied |
Subset of incoming COR list |
Call succeeds |
|
Applied |
Not a subset of incoming COR list |
Call fails |
Note
If either the incoming dial peer or the outgoing dial peer does not have a COR list applied, the call succeeds.