TANDBERG VCS Administrator's Manual page 272

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Glossary
Term
External zone Any zone configured on the local VCS that connects out to a remote system or the internet. Neighbor, Traversal Server, Traversal Client, ENUM and DNS zones are
all external zones.
Firewall traversal Crossing a firewall or NAT device.
FindMe™ A TANDBERG feature that allows users to have a single alias on which they can be reached regardless of the endpoint(s) they are currently using.
FQDN A domain name that specifies the node's position in the DNS tree absolutely, uniquely identifying the system or device. Note that in order to use FQDNs instead of
Fully Qualified Domain Name IP Addresses when configuring the VCS, you must have at least one DNS server configured.
Gatekeeper A device used to control H.323 multimedia networks. An example is the TANDBERG Gatekeeper.
Gatekeeper zone A collection of all the endpoints, gateways and MCUs managed by a single gatekeeper.
H.323 A standard that defines the protocols used for packet-based multimedia communications systems.
HTTP A protocol used for communications over the internet.
Hypertext Transfer Protocol
HTTPS A protocol used for secure communications over the internet, combining HTTP with TLS.
Hypertext Transfer Protocol over
Secure Socket Layer
Hop count The maximum number of gatekeeper or SIP proxy devices (e.g. a VCS) that a message may be forwarded through before it is decided that its intended recipient is not
reachable.
ICE A collaborative algorithm that works together with STUN services (and other NAT traversal techniques) to allow clients to achieve firewall traversal. This is the
Interactive Connectivity Establishment emerging traversal standard for use by SIP endpoints (although it could be used for other protocols).
IETF An organization that defines (via documents such as RFCs) the protocol standards and best practices relating to the design, use and management of the internet.
Internet Engineering Task Force
Interworking Allowing H.323 systems to connect to SIP systems.
IPv4 Version 4 of the Internet Protocol, defined in
Internet Protocol version 4
IPv6 Version 6 of the Internet Protocol, defined in
Internet Protocol version 6
IRQ A request sent to an endpoint requesting information about its status.
Information Request
LAN A geographically limited computer network, usually with a high bandwidth throughput.
Local Area Network
LDAP A protocol for accessing on-line directories running over TCP/IP.
Lightweight Directory Access Protocol
Link In relation to the VCS, a connection between two nodes.
Local Registration, A relative term used to refer to any endpoint or system that is registered with the Local VCS.
Locally Registered Endpoint
Overview and
Introduction Getting Started
Status
D14049.04
JULY 2008
Definition
System VCS
Configuration Configuration
RFC 791 [18].
RFC 2460 [19].
Zones and Call Bandwidth
Neighbors Processing Control
272
TANDBERG VIDEO COMMUNICATIONS SERVER
Firewall
Applications Maintenance
Traversal
ADMINISTRATOR GUIDE
Appendices