RADVision SCOPIA XT4000 Series User's Guide Page 95
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BFCP (Binary Floor
Control Protocol)
BFCP is a protocol which coordinates shared videoconference features in
SIP calls, often used by one participant at a time. For example, when
sharing content to others in the meeting, one participant is designated as
the presenter, and is granted the floor for presenting. All endpoints must be
aware that the floor was granted to that participant and react appropriately.
Bitrate
Bitrate is the speed of data flow. Higher video resolutions require higher
bitrates to ensure the video is constantly updated, thereby maintaining
smooth motion. If you lower the bitrate, you lower the quality of the video. In
some cases, you can select a lower bitrate without noticing a significant
drop in video quality; for example during a presentation or when a lecturer
is speaking and there is very little motion. In video recordings, the bitrate
determines the file size for each minute of recording. Bitrate is often
measured in kilobits per second (kbps).
Call Control
See Signaling on page 104.
Cascaded
Videoconference
A cascaded videoconference is a meeting distributed over more than one
physical Scopia
®
Elite MCU, where a master MCU connects to one or more
slave MCUs to create a single videoconference. It increases the meeting
capacity by combining the resources of several MCUs. This can be
especially useful for distributed deployments across several locations,
reducing bandwidth usage.
CIF
CIF, or Common Intermediate Format, describes a video resolution of 352 ×
288 pixels (PAL) or 352 x 240 (NTSC). This is sometimes referred to as
Standard Definition (SD).
Content Slider The Scopia
®
Content Slider stores the data already presented in the
videoconference and makes it available for participants to view during the
meeting.
Continuous
Presence
Continuous presence enables viewing multiple participants of a
videoconference at the same time, including the active speaker. This
graphics-intensive work requires scaling and mixing the images together
into one of the predefined video layouts. The range of video layouts
depends on the type of media processing supported, typically located in the
MCU.
Control
Control, or media control, sets up and manages the media of a call (its
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 on page 95.
BFCP (Binary Floor Control Protocol)
April 2015 Avaya Scopia
®
XT Series User Guide 95
Comments? [email protected]
- Avaya Scopia 1
- XT Series User Guide 1
- Contents 5
- Figure 1: XT Series products 7
- XT Series User Guide 7 7
- Figure 2: Avaya Scopia 9
- XT7000 Series 9
- XT Series User Guide 9 9
- 10 Avaya Scopia 10
- Comments? [email protected] 11
- Figure 7: Scopia 12
- XT Executive 12
- About the XT Series 12
- Related Links 14
- About the XT Series on page 7 14
- About the Built-In MCU 15
- XT Series) 16
- Chapter 2: Getting Started 17
- Controlling the XT Series 18
- About this task 19
- Before you begin 19
- Procedure 19
- Getting Started 20
- XT Series User Guide 21 21
- Connecting to a Scopia 26
- Adjusting the Image Position 30
- 32 Avaya Scopia 32
- Installing Scopia 35
- XT Executive) 35
- XT Series User Guide 37 37
- Starting a Meeting 39
- Figure 29: Contact list 41
- XT Series User Guide 41 41
- 42 Avaya Scopia 42
- Figure 37: Add a new contact 45
- XT Series User Guide 45 45
- 46 Avaya Scopia 46
- XT Series User Guide 47 47
- 50 Avaya Scopia 50
- XT Series User Guide 53 53
- XT Series Endpoint 54
- XT Series User Guide 55 55
- Participating in Meetings 56
- Figure 64: Call settings 65
- XT Series User Guide 65 65
- Chapter 5: Recording Meetings 67
- XT Series User Guide 69 69
- Moderating a Videoconference 70
- Moderating Meetings 72
- XT Series User Guide 75 75
- Settings 77
- Activating the Screen Saver 79
- Recording 80
- XT Executive only) 82
- XT Series 86
- Flickering or blank screen 88
- Blank screen 88
- Screen layout cropped 88
- Solution 90
- Low battery power 90
- XT Remote Control Unit code 90
- Not connect to network 92
- Authentication required 92
- XT Series User Guide 93 93
- XT Series User Guide 95 95
- Endpoint Alias 97
- XT Series User Guide 97 97
- XT Series User Guide 99 99
- Glossary 100
- Avaya Scopia 100
- Media Control 101
- April 2015 Avaya Scopia 101
- XT Series User Guide 101 101
- XT Series User Guide 103 103
- SIP Registrar 105
- XT Series User Guide 105 105
- Unbalanced Microphone 107
- XT Series User Guide 107 107
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