Cisco Cisco Expressway

Forking CPL

This CPL can be used to fork a call to multiple aliases:

<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>

<!--Fork the call to endpoint1@example.com and add new aliases

endpoint2@example.com and endpoint3@example.com -->

<taa:location clear="no" url="endpoint1@example.com">

<taa:location url="endpoint2@example.com">

<taa:location url="endpoint3@example.com">

</taa:location>

</taa:routed>

</cpl>

Conditional routing CPL

This CPL can be used to redirect a call under specific conditions. In this example, if a call that initially routes
to alice is not answered then the call redirects to bob:

<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>

<!--Clear the destination aliases (clear=yes)and

add the destination alias alice@example.com

url="alice@example.com")-->

<taa:location clear="yes" url="alice@example.com">

<!-- If the call setup fails for any reason or takes more than ten seconds

to complete then the CPL within the default tag is activated -->

<!--Clear the destination aliases (clear=yes) and add the

destination alias bob@example.com (url="bob@example.com")-->

<taa:location clear="yes" url="bob@example.com">

</taa:location>

</default>

</proxy>

</taa:location>

</taa:routed>

</cpl>

External Policy on Cisco Expressway Deployment Guide (X8.1)

Page 18 of 21

Appendix 2: CPL snippet examples