Cisco Cisco Expressway Maintenance Manual
Filter Queries to a Zone Without Transforming
You can filter the search requests sent to a zone so that it is only queried for aliases that match certain criteria. For
example, assume all endpoints in your regional sales office are registered to their local Cisco VCS with a suffix of
example, assume all endpoints in your regional sales office are registered to their local Cisco VCS with a suffix of
@sales.example.com
. In this situation, it makes sense for your Head Office Expressway to query the Sales Office VCS
only when it receives a search request for an alias with a suffix of
@sales.example.com
. Sending any other search
requests to this particular VCS would take up resources unnecessarily. It would also be wasteful of resources to send
search requests for aliases that match this pattern to any other zone (there may be other lower priority search rules
defined that would also apply to these aliases). In which case setting On successful match to Stop means that the
Expressway will not apply any further (lower priority) search rules.
search requests for aliases that match this pattern to any other zone (there may be other lower priority search rules
defined that would also apply to these aliases). In which case setting On successful match to Stop means that the
Expressway will not apply any further (lower priority) search rules.
To achieve the example described above, on your Head Office Expressway create a zone to represent the Sales
Office VCS, and from the Create search rule page (Configuration > Dial plan > Search rules > New) set up an
associated search rule as follows:
Office VCS, and from the Create search rule page (Configuration > Dial plan > Search rules > New) set up an
associated search rule as follows:
Field
Value
Rule name
Regional sales office
Description
Calls to aliases with a suffix of @sales.example.com
Priority
100
Source
Any
Request must be
authenticated
authenticated
No
Mode
Alias pattern match
Pattern type
Suffix
Pattern string
@sales.example.com
Pattern behavior
Leave
On successful match
Stop
Target
Sales office
State
Enabled
Always Query a Zone With Original Alias (No Transforms)
To configure a zone so that it is always sent search requests using the original alias, from the Create search rule
page (Configuration > Dial plan > Search rules > New), set up a search rule for that zone with a Mode of Any alias:
page (Configuration > Dial plan > Search rules > New), set up a search rule for that zone with a Mode of Any alias:
Field
Value
Rule name
Always query with original alias
Description
Send search requests using the original alias
Priority
100
Source
Any
Request must be
authenticated
authenticated
No
Mode
Any alias
On successful match
Continue
139
Cisco Expressway Administrator Guide
Dial Plan and Call Processing