Avaya Scopia XT Series User Manual page 75

PoP Video Layout
The PoP (Picture out Picture) view shows up to three images of different size, presented side by side,
where the image on the left is larger than the two smaller images on the right.
Prefix
See Dial Prefix
PTZ Camera
A PTZ camera can pan to swivel horizontally, tilt to move vertically, and optically zoom to devote all the
camera's pixels to one area of the image. For example, the XT Standard Camera is a PTZ camera with
its own power supply and remote control, and uses powerful lenses to achieve superb visual quality. In
contrast, fixed cameras like webcams only offer digital PTZ, where the zoom crops the camera image,
displaying only a portion of the original, resulting in fewer pixels of the zoomed image, which effectively
lowers the resolution. Fixed cameras also offer digital pan and tilt only after zooming, where you can pan
up to the width or length of the original camera image.
Q.931
Q.931 is a telephony protocol used to start and end the connection in H.323 calls.
QCIF
QCIF, or Quarter CIF, defines a video resolution of 176 × 144 pixels (PAL) or 176 x 120 (NTSC). It is
often used in older mobile handsets (3G-324M) limited by screen resolution and processing power.
Quality of Service (QoS)
Quality of Service (QoS) determines the priorities of different types of network traffic (audio, video and
control/signaling), so in poor network conditions, prioritized traffic is still fully transmitted.
Recordings
A recording of a videoconference can be played back at any time. Recordings include audio, video and
shared data (if presented). In Scopia
meeting. Users can access Scopia
a web link to the recording on the portal.
User Guide for Avaya Video Collaboration Solution for IP Office
Version 8.3
on page 66.
®
Desktop, any participant with moderator rights can record a
®
Desktop recordings from the Scopia
®
Desktop web portal or using
®
Glossary of Terms for Scopia Solution | 75