RADVision Scopia XT5000 Series User Manual page 107

RTSP
RTSP or Real-Time Streaming Protocol controls the delivery of streamed live or playback video over IP,
with functions like pause, fast forward and reverse. While the media itself is sent via RTP, these control
functions are managed by RTSP
Sampling Rate
The sampling rate is a measure of the accuracy of the audio when it is digitized. During conversions
from analog to digital sound, if you increase the frequency that audio data is collected, or "sampled", you
increase the audio quality.
SBC
A Session Border Controller (SBC) is a relay device between two different networks. It can be used in
firewall/NAT traversal, protocol translations and load balancing.
Scalability
Scalability describes the ability to increase the capacity of a network device by adding another identical
device (one or more) to your existing deployment. In contrast, a non-scalable solution would require
replacing existing components to increase capacity.
SD
Standard Definition (SD), is a term used to refer to video resolutions which are lower than HD. There is
no consensus defining one video resolution for SD.
Service
Also known as MCU service. See
SIF
SIF defines a video resolution of 352 x 240 pixels (NTSC) or 352 x 288 (PAL). This is often used in
security cameras and countries.
Signaling
Signaling, also known as call control, is the set of messages used to setup, manage and end a call. They
include the authorization to make the call, checking bandwidth, resolving endpoint addresses, and
routing the call through different servers. Signaling is transmitted via the H.225.0/Q.931 and
User Guide for Scopia XT5000 Series Version 3.2
Meeting Type on page 104.
Glossary of Terms for Scopia Solution | 107