Cisco Cisco Expressway Maintenance Manual

Query a Zone for a Transformed Alias

Note that the Any alias mode does not support alias transforms. If you want to always query a zone using a different
alias to that received, you need to use a mode of Alias pattern match in combination with a regular expression.

You may want to configure your dial plan so that when a user dials an alias in the format

name@example.com

the

Expressway queries the zone for

name@example.co.uk

instead.

To achieve this, from the Create search rule page (Configuration > Dial plan > Search rules > New) set up a search
rule as follows:

Field

Value

Rule name

Transform to example.co.uk

Description

Transform example.com to example.co.uk

Priority

100

Source

Any

Request must be
authenticated

Mode

Alias pattern match

Pattern type

Suffix

Pattern string

example.com

Pattern behavior

Replace

Replace string

example.co.uk

On successful match Continue

Target zone

Head office

State

Enabled

Query a Zone for Original and Transformed Alias

You may want to query a zone for the original alias at the same time as you query it for a transformed alias. To do this,
configure one search rule with a Mode of Any alias, and a second search rule with a Mode of Alias pattern match
along with details of the transform to be applied. Both searches must be given the same Priority level.

For example, you may want to query a neighbor zone for both a full URI and just the name (the URI with the domain
removed). To achieve this, on your local Expressway from the Create search rule page (Configuration > Dial plan >
Search rules > New) set up two search rules as follows:

Rule #1