Manual
Table Of Contents
- Preface
- Introduction
- Process Summary
- Prerequisites
- Run the Service Setup Wizard
- VCS System Configuration
- Routing Configuration
- Pre-search Transforms
- Search Rules
- Task 8: Configuring Transforms
- Task 9: Configuring Local Zone Search Rules
- Task 10: Configuring the Traversal Zone
- Neighboring Between VCS Clusters
- Task 11: Configuring Traversal Zone Search Rules
- Task 12: Configuring the DNS Zone
- Task 13: Configuring DNS Zone Search Rules
- Task 14: Configuring External (Unknown) IP Address Routing
- Endpoint Registration
- System Checks
- Maintenance Routine
- Optional Configuration Tasks
- Appendix 1: Configuration Details
- Appendix 2: DNS Records
- Appendix 3: Firewall and NAT Settings
- Appendix 4: Advanced Network Deployments
- Obtaining Documentation and Submitting a Service Request
- Cisco Legal Information
- Cisco Trademark

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:ietf:params:xml:ns:cpl cpl.xsd">
<taa:routed>
<taa:rule-switch>
<!--Check that gateway is not hairpinning call - Neighbor zone -->
<taa:rule originating-zone="GatewayZone" destination="9.*">
<!-- Calls coming from the gateway may not send calls back out of this gateway -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="ISDN hairpin call denied"/>
</taa:rule>
<!-- Check that gateway is not hairpinning call - Subzone for registered gateway -->
<taa:rule originating-zone="GatewaySubZone" destination="9.*">
<!-- Calls coming from the gateway may not send calls back out of this gateway -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="ISDN hairpin call denied"/>
</taa:rule>
<taa:rule origin=".*" destination=".*">
<!-- All other calls allowed -->
<proxy/>
</taa:rule>
</taa:rule-switch>
</taa:routed>
</cpl>
This example CPL also ensures that the calling party is authenticated:
<?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>
<taa:rule-switch>
<!-- Check that calling party is authenticated -->
<taa:rule authenticated-origin="" destination="9.*">
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="ISDN call denied as unauthenticated caller"/>
</taa:rule>
<!-- Check that gateway is not hairpinning call - Neighbor zone -->
<taa:rule originating-zone="GatewayZone" destination="9.*">
<!-- Calls coming from the gateway may not hairpin and send calls back out -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="ISDN hairpin call denied"/>
</taa:rule>
<!-- Check that gateway is not hairpinning call - Subzone for registered gateway -->
<taa:rule originating-zone="GatewaySubZone" destination="9.*">
<!-- Calls coming from the gateway may not hairpin and send calls back out -->
<!-- Reject call with a status code of 403 (Forbidden) -->
<reject status="403" reason="ISDN hairpin call denied"/>
</taa:rule>
<taa:rule origin=".*" destination=".*">
<!-- All other calls allowed -->
<proxy/>
</taa:rule>
</taa:rule-switch>
</taa:routed>
</cpl>
Loading the CPL onto VCS Control
To configure the VCS Control to use the CPL:
51
Cisco VCS Expressway and VCS Control - Basic Configuration Deployment Guide
Optional Configuration Tasks