Glossary - Cisco TelePresence Administrator's Manual

Glossary

Term
A record
AAAA record
Administrator Policy
Alias
Alternate
AOR
Address of Record
ARQ
Admission Request
Assent
B2BUA
Back-to-back user agent
Border Controller
CA
Certificate authority
CAC
Common Access Card
Call Policy
Cisco TelePresence
Conductor
Cisco TMS
Cisco TelePresence
Management Suite
Cisco VCS
Cisco TelePresence
Video Communication
Server
Cisco VCS Control
Cisco VCS Administrator Guide (X7.2)
Definition
A type of DNS record that maps a host name to an IPv4 address.
A type of DNS record that maps a host name to an IPv6 address.
See Call Policy
The name an endpoint uses when registering with the VCS. Other endpoints can then
use this name to call it. An endpoint may register with more than one alias.
One or more VCSs configured to support the same zone in order to provide
redundancy. See also Cluster.
A SIP or SIPS URI that points to a domain with a location service that can map the URI
to another URI where the user might be available. Typically, the location service is
populated through registrations. An AOR is frequently thought of as the "public
address" of the user.
An endpoint RAS request to make or answer a call.
Cisco's proprietary protocol for firewall traversal.
A back-to-back user agent operates between both end points of a SIP call and divides
the communication channel into two independent call legs. Unlike a proxy server, a
B2BUA maintains complete state for the calls it handles. A B2BUA typically provides
more features than a proxy server, such as media interworking.
A device used to control multimedia networks and firewall traversal.
An organization that validates and signs certificate requests.
A CAC is a smart card (or similar) device that contains a user's unique certificate and
private key. Access to the certificate and key is granted by entering a PIN code and the
certificate is used in mutual authentication with other systems to prove the identity of
the user. This is classed as two-factor authentication as the user needs both the CAC
and the PIN to access its contents.
In relation to the VCS, the set of rules configured system-wide (either via the web
interface or CPL script) that determine the action(s) to be applied to calls matching a
given criteria. (Also referred to as Administrator Policy.)
The Cisco TelePresence Conductor lies within your video communications network
between a VCS and a pool of MCUs. It allows administrators to configure the network
so that users can dial a specified conference alias from an endpoint and be taken
straight into a conference hosted on an MCU.
A Cisco product used for the management of video networks.
A generic term for the Cisco product which acts as a gatekeeper and SIP proxy/server.
A VCS whose main function is to act as a gatekeeper, SIP proxy and firewall traversal
client. This system is generally located within the firewall.
Reference material
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