if

Contains a single condition. If the condition evaluates to a non-null value, the evaluation continues in the if branch. If the condition evaluates to null, the evaluation continues in the optional else branch.

Superelements

sip-rules, http-rules, or, and, if

Subelements

All of the following subelements are optional and can occur in any number and any order:

or, and, if, header, request-uri, session-case, cookie

The else subelement is optional and must occur last if specified.