This article relates to Cisco TelePresence Video Communication Server Expressway.
Q. My dial plan uses a VCS as a master/directory gatekeeper to route calls within my network. What type of call licences does this VCS need?
A. Our recommended deployment is for your directory VCS to be a VCS Control residing inside the firewall, connected to a traversal server outside the firewall. In this configuration, the directory VCS will not have any endpoints registered to it, and all other systems within your network are connected to it via zones.
Any calls between endpoints in your internal network that reside in different zones will pass through the directory VCS Control. Such calls may use either a non-traversal (local) call license or a traversal call license, depending on the nature of the call.
Any calls between your local network and outside the firewall will pass through the directory VCS Control and these will always use a traversal call license.
A VCS Control comes with 100 traversal calls and 10 local calls, so you may need to purchase further licenses depending on the volume of calls in your network. Contact your TANDBERG representative for further information.
For more information on what constitutes traversal and non-traversal calls, consult the Traversal Subzone section of the VCS Administrators Guide.