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D14049.05
February 2009
Grey Headline
(continued)
TANDBERG
VIDEO COMMUNICATIONS SERVER
ADMINISTRATOR GUIDE
Introduction
Getting started
Overview and
status
System
configuration
VCS
configuration
Zones and
neighbors
Call
processing
Bandwidth
control
Firewall
traversal
Appendices
Applications
Maintenance
Glossary
Term
Definition
Link
In relation to the VCS, a connection between two nodes.
Local call
(Also referred to as a non-traversal call.) A call where the signaling but not the media is routed through the local VCS. See the section
What are traversal calls?
for
more information.
Local registration,
Locally registered endpoint
A relative term used to refer to any endpoint or system that is registered with the local VCS.
Local VCS
A relative term used to refer to the particular VCS that you are currently administering, as opposed to other VCSs in your network.
Local Zone
A relative term used to refer to the group of endpoints and other systems registered to a particular VCS. If a VCS is part of a cluster, the Local Zone refers to the
collection of all endpoints and other systems registered to all peers in that cluster.
LRQ
Location Request
A RAS query between gatekeepers to determine the location of an endpoint.
Microsoft Office Communications
Server 2007
Microsoft OCS
Microsoft OCS (Office Communications Server) 2007 is an enterprise real-time communications server, providing the infrastructure to allow instant messaging,
presence, audio-video conferencing and web conferencing functionality.
Microsoft Office Communications
(MOC) client
The client application released with Microsoft Office Communications Server (OCS). The MOC client can be used for instant messaging, presence, voice and video
calls and ad hoc conferences.
NAPTR record
A type of DNS record.
NAT
Network Address Translation
Also known as IP masquerading. Rewriting source and destination addresses as the IP packet passes through the NAT device.
Neighbor
An remote system to which the VCS has a connection via a neighbor zone.
Neighbor zone
On the VCS, a zone used to configure a connection to a remote system with which the local VCS has a non-traversal relationship.
Node
In relation to the VCS, a node is one end of a link. A node can be a local subzone or a zone.
Non-traversal call
(Also referred to as local call.) A call where the signaling but not the media is routed through the local VCS. See the section
What are traversal calls?
for more
information.
NTP
Network Time Protocol
A protocol used for synchronizing clocks. Defined in RFC 1305.
OCS Relay
A VCS application that enables interoperability between Microsoft Office Communications Server (OCS) and FindMe. See the
OCS Relay
section for more
information.
Peer
A VCS that has been configured to belong to a cluster.
PEM
Privacy-Enhanced Electronic Mail:
An IETF proposal for securing messages using public key cryptography.
Pipe
In relation to the VCS, a means of controlling the bandwidth used on a link.
