Cisco Cisco TelePresence Video Communication Server Expressway

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Introduction 
Introduction 
The Cisco TelePresence Video Communication Server (Cisco VCS) can be deployed as a Cisco 
VCS Control 
application or as a Cisco VCS Expressway™ application
The Cisco VCS Expressway enables business to business communications, empowers remote and 
home based workers, and gives service providers the ability to provide video communications to 
customers. The Cisco VCS Control provides SIP proxy and call control as well as H.323 gatekeeper 
services within an organizations corporate network environment. 
By combining Cisco VCS Expressway and Cisco VCS Control products a sophisticated and secure 
video network solution can be deployed by an organization enabling internal and external video 
communications. 
This document describes how to configure a Cisco VCS Expressway and a Cisco VCS Control as 
the cornerstones of a basic video infrastructure deployment. 
It takes the video network administrator through the series of steps required to set up the Cisco VCSs 
and then describes how to check that the system is working as expected. 
It provides the required DNS, NAT and firewall configuration information but assumes that the network 
administrator has a working knowledge of configuring these systems. 
Detailed reference information is contained in this document’s appendices: 
Appendix 1 includes a table of the configuration details used to configure the Cisco VCSs in the 
example network deployment. 
Appendix 2 includes details of the DNS records required for the system deployment to work as 
expected.  
Appendix 3 includes details of NAT and firewall configurations required for the system to deployment 
to work as expected. This document describes a small subset of the numerous NAT and firewall 
deployment options, made possible using the Cisco VCS Expressway dual network interface and NAT 
features. 
Descriptions of system configuration parameters can be found in the Cisco VCS Administrator Guide 
and the Cisco VCS web application’s online field help 
 and page help 
Out of scope configuration features 
This document does not describe details of how to deploy: 
 
a cluster of Cisco VCSs 
 
Cisco VCSs running Device Provisioning or FindMe applications 
For more details on these features please refer to the following Cisco VCS deployment guides: 
 
Cluster creation and maintenance (document no. D14367) 
 
Provisioning Deployment Guide (document no. D14368) 
 
FindMe (document no. D14525) 
 
Cisco VCS IP port usage for firewall traversal (X4 and X5) (document number D1460601) 
These documents can be found at: 
Cisco VCS Deployment Guide: Basic Cisco VCS configuration – Cisco VCS Control with 
Cisco VCS Expressway 
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