RADVision Scopia XT5000 Series User Manual page 97

Control
Control, or media control, is the set of messages used to setup and manage the media of a call (audio,
video and data). Control messages include checking compatibility between endpoints, negotiating video
and audio codecs, and other parameters like resolution, bitrate and frame rate. Control is communicated
via H.245 in H.323 endpoints, or by SDP in SIP endpoints. Control occurs within the framework of an
established call, after signaling.
CP
See Continuous Presence
Dedicated Endpoint
A dedicated endpoint is a hardware endpoint for videoconferencing assigned to a single user. It is often
referred to as a personal or executive endpoint, and serves as the main means of video communications
for this user. For example, Scopia XT Executive. It is listed in the organization's LDAP directory as
associated exclusively with this user.
Dial Plan
A dial plan defines various dial prefixes to determine the characteristics of a call. For example, dial 8
before a number for a lower bandwidth call, or 6 for an audio-only call, or 5 to route the call to a different
branch.
Dial Prefix
A dial prefix is a number added to the start of a dial string to route it to the correct destination, or to
determine the type of call. Dial prefixes are defined in the organization's dial plan. For example, dial 9 for
an outside line, or dial 6 for an audio only call.
Distributed Deployment
A distributed deployment describes a deployment where the solution components are geographically
distributed in more than one network location.
DNS Server
A DNS server is responsible for resolving domain names in your network by translating them into IP
addresses.
User Guide for Scopia XT5000 Series Version 3.2
on page 96.
Glossary of Terms for Scopia Solution | 97