Cisco TelePresence Administrator's Manual page 372

Reference material
<taa:routed>
<address-switch field="destination">
<address is="ceo">
<address-switch field="authenticated-origin">
<address regex="vpsales|vpmarketing|vpengineering">
<!-- Allow the call -->
<proxy/>
</address>
<not-present>
<!-- Unauthenticated user -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="Denied by policy"/>
</not-present>
<otherwise>
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="Denied by policy"/>
</otherwise>
</address-switch>
</address>
</address-switch>
</taa:routed>
</cpl>
CPL example: call screening based on domain
In this example, user fred will not accept calls from anyone at annoying.com, or from any unauthenticated
users. All other users will allow any calls.
<?xml version="1.0" encoding="UTF-8" ?>
<cpl xmlns="urn:ietf:params:xml:ns:cpl"
xmlns:taa="http://www.tandberg.net/cpl-extensions"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">
<taa:routed>
<address-switch field="destination">
<address is="fred">
<address-switch field="authenticated-origin" subfield="host">
<address subdomain-of="annoying.com">
<!-- Don't accept calls from this source -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="Denied by policy"/>
</address>
<not-present>
<!-- Don't accept calls from unauthenticated sources -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="Denied by policy"/>
</not-present>
<otherwise>
<!-- All other calls allowed -->
<proxy/>
</otherwise>
</address-switch>
</address>
</address-switch>
</taa:routed>
</cpl>
Cisco VCS Administrator Guide (X8.1.1)
CPL reference
Page 372 of 507