VCS base applications
The VCS is available with alternative base applications as described below.
VCS Control
VCS Control delivers any-to-any enterprise wide conference and session management and interworking
capabilities. It extends the reach of telepresence conferences by enabling interworking between Session
Initiation Protocol (SIP)- and H.323-compliant endpoints, interworking with third-party endpoints; it integrates
with Unified CM and supports third-party IP private branch exchange (IP PBX) solutions. VCS Control
implements the tools required for creative session management, including definition of aspects such as
routing, dial plans, and bandwidth usage, while allowing organizations to define call-management
applications, customized to their requirements.
VCS Expressway
The VCS Expressway deployed with the VCS Control enables smooth video communications easily and
securely outside the enterprise. It enables business-to-business video collaboration, improves the
productivity of remote and home-based workers, and enables service providers to provide video
communications to customers. The application performs securely through standards-based and secure
firewall traversal for all SIP and H.323 devices. As a result, organizations benefit from increased employee
productivity and enhanced communication with partners and customers.
It uses an intelligent framework that allows endpoints behind firewalls to discover paths through which they
can pass media, verify peer-to-peer connectivity through each of these paths, and then select the optimum
media connection path, eliminating the need to reconfigure enterprise firewalls.
The VCS Expressway is built for high reliability and scalability, supporting multivendor firewalls, and it can
traverse any number of firewalls regardless of SIP or H.323 protocol.
Standard features
The primary purpose of the VCS is to provides secure firewall traversal and session-based access to Cisco
Unified Communications Manager for remote workers, without the need for a separate VPN client.
The VCS has the following standard features:
n
Provides secure firewall traversal and session-based access to Cisco Unified Communications Manager
for remote workers, without the need for a separate VPN client
n
2500 endpoint registrations on a standard appliance and 5000 registrations on Large VM server
deployments
n
SIP Proxy/Registrar
n
SIP Presence Server
n
SIP Presence User Agent
n
SIP and H.323 support, including SIP / H.323 interworking
n
IPv4 and IPv6 support, including IPv4 / IPv6 interworking
n
H.323 gatekeeper
n
QoS tagging
Cisco VCS Administrator Guide (X8.1.1)
Page 13 of 507
Introduction
About the Cisco TelePresence Video Communication Server (VCS)
