Cisco Cisco Expressway Maintenance Manual
■
Further transforms of the alias may take place during the remainder of the search process as a result of
(also known as Administrator Policy). If this is the case, the pre-search transforms are re-applied to the
new alias.
■
If you add a new pre-search transform that has the same priority as an existing transform, all transforms with a
lower priority (those with a larger numerical value) will have their priority incremented by one, and the new
transform will be added with the specified priority. However, if there are not enough “slots” left to move all the
priorities down, you will get an error message.
lower priority (those with a larger numerical value) will have their priority incremented by one, and the new
transform will be added with the specified priority. However, if there are not enough “slots” left to move all the
priorities down, you will get an error message.
Configuring Pre-Search Transforms
currently
configured on the Expressway. It is used to create, edit, delete, enable and disable transforms.
Aliases are compared against each transform in order of Priority, until a transform is found where the alias matches
the Pattern in the manner specified by the pattern Type. The alias is then transformed according to the Pattern
behavior and Replace string rules before the search takes place (either locally or to external zones).
the Pattern in the manner specified by the pattern Type. The alias is then transformed according to the Pattern
behavior and Replace string rules before the search takes place (either locally or to external zones).
After the alias has been transformed, it remains changed. and all further call processing is applied to the new alias.
messages.
The configurable options are:
Field
Description
Usage tips
Priority
The priority of the transform. Priority can be from 1
to 65534, with 1 being the highest priority.
Transforms are applied in order of priority, and the
priority must be unique for each transform.
to 65534, with 1 being the highest priority.
Transforms are applied in order of priority, and the
priority must be unique for each transform.
Description
An optional free-form description of the transform.
The description appears as a tooltip if you
hover your mouse pointer over a transform in
the list.
hover your mouse pointer over a transform in
the list.
Pattern type
How the Pattern string must match the alias for
the rule to be applied. Options are:
the rule to be applied. Options are:
Exact: the entire string must exactly match the
alias character for character.
alias character for character.
Prefix: the string must appear at the beginning of
the alias.
the alias.
Suffix: the string must appear at the end of the
alias.
alias.
.
You can test whether a pattern matches a
particular alias and is transformed in the
expected way by using the
particular alias and is transformed in the
expected way by using the
tool (Maintenance > Tools > Check pattern).
Pattern string
Specifies the pattern against which the alias is
compared.
compared.
The Expressway has a set of predefined
to match against certain configuration
elements.
elements.
134
Cisco Expressway Administrator Guide
Dial Plan and Call Processing