Administrator Guides EN Owner's manual

Routing Rules
7-8 41-001391-00 Rev 03 – 04.2012
Global Regular Expression Rules
Global Regular Expression Rules (Global Regex Rules) are consulted by the Location Lookup before any other checks are
done (including the administrative domain check), and are always consulted for every new call. They can be used to
rewrite URLs of a certain nature, e.g., to rewrite a URL that would originally not be considered to be in the administrative
domain so that it is in the administrative domain. Global Regex Rules should be kept to a minimum, since having a large
number of them could impact server performance negatively, reducing the number of calls per second the server can
process. These rules typically will not be used to rewrite phone numbers as in the above examples, since at this stage it is
unclear whether it is the responsibility of the proxy to resolve the URL or not.
Testing Rule
Enter the rule to be tested to make sure it is working correctly, i.e. a string matching one of the rules is correctly
converted to the expected “replacement string”. The test fails if no rule matches.
If a rule is matched to a URL, the Location Lookup procedure is restarted with the new rewritten URL.