Transforms; Search Rules; Dial Plan Configuration - Cisco TelePresence Video Communication Server Administrator's Manual

Transforms

Transforms are used to modify the alias in a search request if it matches certain criteria. You can
transform an alias by removing or replacing its prefix, suffix, or the entire string, and by the use of
regular expressions.
This transformation can be applied to the alias at two points in the routing process: as a pre-search
transform, and as a zone transform.
Pre-search transforms are applied before any Call Policy or User Policy are applied and before the
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search process is performed (see
Zone transforms are applied during the search process by each individual search rule as required.
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After the search rule has matched an alias they can be used to change the target alias before the
search request is sent to a target zone or policy service (see
more details).

Search rules

Search rules are used to route incoming search requests to the appropriate target zones (including the
Local Zone) or policy services.
The VCS's search rules are highly configurable. You can:
define alias, IP address and pattern matches to filter searches to specific zones or policy services
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define the priority (order) in which the rules are applied and stop applying any lower-priority search
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rules after a match is found; this lets you reduce the potential number of search requests sent out,
and speed up the search process
set up different rules according to the source of the query (such as the Local Zone, or any known
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zone)
limit the range of destinations or network services available to unauthenticated devices by making
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specific search rules applicable to
use zone transforms to modify an alias before the query is sent to a target zone or policy service
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Note that multiple search rules can refer to the same target zone or policy service. This means that
you can specify different sets of search criteria and zone transforms for each zone or policy service.
The VCS uses the protocol (SIP or H.323) of the incoming call when searching a zone for a given
alias. If the search is unsuccessful the VCS may then search the same zone again using the
alternative protocol, depending on where the search came from and the Interworking mode
configuration > Protocols >
If the request has come from a neighboring system and Interworking mode is set to Registered
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only, the VCS searches the Local Zone using both protocols, and all other zones using the native
protocol only (because it will interwork the call only if one of the endpoints is locally registered).
If Interworking mode is set to On, or the request has come from a locally registered endpoint, the
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VCS searches the Local Zone and all external zones using both protocols.

Dial plan configuration

The Dial plan configuration page
configure how the VCSroutes calls in specific call scenarios.
The configurable options are:
Cisco VCS Administrator Guide (X6.1)
About pre-search transforms
authenticated requests
Interworking):
(VCS configuration > Dial plan>
Dial plan and call processing
for more details).
Search and zone transform process
only
Configuration) is used to
for
(VCS
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