Cisco TelePresence Administrator's Manual page 193

Dial plan and call processing
State
To divert all searches to the policy server you could set up 2 search rules that both target the policy
service:
The first search rule with a Mode of Any alias.
l
The second search rule with a Mode of Any IP address.
l
4. Click Create search rule.
The VCS will direct all searches that match the specified pattern to the policy service server.
Your search rules must be configured in such a way that they will result in a match for the initial alias, and
then either not match or not return a reject for any aliases to which the policy server has routed the call.
Cisco VCS Administrator Guide (X8.1.1)
Enabled
Configuring search rules to use an external service
Page 193 of 507