|
|
Virtual Classrooms facilitate delivery of eLearning
content using the following modes:
Distributed Classroom (2 Way Audio and Data)
Video Conferencing (2 Way Audio, Video and Data)
Classroom / Laboratory Setup
Distributed Classroom (2 Way Audio and Data)
What is a Distributed Classroom?
Distributed classroom is a web based audio conferencing
solution in which participants can share data and audio
with each other.
 
Features of Distributed Classroom :
Low bandwidth requirements (minimum 30 Kbps)
Voice Conferencing
Web Conferencing and Collaboration
Application sharing
Shared whiteboard
Integrated video support using webcams
Polling
Public and private chat
Emoticons, raise hand and step out indicators
Access from any device: telephone, mobile, IP phone, PC
Integrated TDM / VoIP Audio
Event/meeting scheduling, registration, and tracking
User management (individual and group) and user list
Import/export
Event recording/editing
Video Conferencing (2 Way Audio, Video and Data)
Introduction:
Video Conferencing Setup consists of the following:
Multipoint Control Unit (MCU)
Video Conferencing Endpoints
Lecture Room / Studio Setup
Multipoint Control Unit (MCU)
What is MCU
Multipoint Control Unit, a device in videoconferencing
that connects two or more audiovisual terminals together
into one single videoconference call. The MCU collects
information about the capabilities of the systems at
each of the videoconference endpoints and sets the
conference at the lowest common denominator so that
everyone can participate.
Features and facilities provided by the Multipoint
Control Unit (MCU)
Video Standards
H.261, H.263, H.263+, H.263++, H.264
Video Resolution
From QCIF up to 720p (1280 x 720) including interlaced
iCIF and iSIF • 4:3 and 16:9 aspect ratios
Frame Rates
Up to 30 frames or 60 fields per second
Audio Standards
G.711, G.722, G.723.1, G.728, G.729, MPEG-4 AAC-LC,
MPEG-4 AAC-LD
Protocols
H.323 v4, SIP, H.235 (AES), H.239 (dual video), VNC™,
FTP,
RTP, RTSP, HTTP, DHCP, SNMP, NTP
Bandwidth
H.263 up to 4 Mbps, H.264 up to 2 Mbps for each site
in all conference modes including advanced (symmetric)
continuous presence
Universal Transcoding and Transrating
Automatic audio / video transcoding and transrating on
all calls
Any bandwidth, any resolution, any video or audio codec
can be used on any video call within the same conference
Each participant has their own personal encode
Extremely low latency; less than 80 ms
Streaming Video
Built-in streaming server
View using Windows Media Player™, RealPlayer™ or
QuickTime™
Streaming of slides (H.239 and VNC™)
Text chat
Unicast and multicast
UDP, TCP or HTTP
Independent choice of bandwidth and codec
Localization and Customization
Custom IVR / auto attendant audio prompts and graphics
Up loadable multi language support
Built-in Gatekeeper
Resolution of E.164 numbers
Registration of conferences, endpoints and gateways
Up to 25 devices can register, options to extend this to
100 or 300 devices
Built-in Web Server
Complete configuration, control and monitoring of the
system and conferences
Audio Features
Wideband audio mixing
Built-in and up loadable auto attendant voice prompts
Automatic gain control, adjustable gain, power
indication, individual audio mute
using web pages
Quality of Service
Configurable DSCP or TOS/IP precedence
Security Features
Seven levels of access rights and privileges for users
Password-protected conferences
Recording
Automatic Recording of Ongoing Sessions
Video Conferencing Endpoints
Each location who wishes to participate in a Video
Conference should have a Video Conferencing endpoint
which
supports the following features:
Should be ITU H.323 and H.320 compliant
Support for upto 2 Mbps IP calls
Support for minimum 384Kbps ISDN calls
Support for Data Sharing through a PC / Laptop
Classroom / Laboratory Setup
Video Conferencing Facilities in each Classroom /
Laboratory includes:
Projector (SXGA + Resolution with LAN Monitoring)
Motorised Screen
Interactive WhiteBoard ( Size 88”)
Teacher’s Desk
Document Camera
Video Conferencing (IP / ISDN based)
Digital Video Recorder
Lighting Controls
Interactive Touch based Tablet LCD Monitors
Class Voting System (Based on the requirement)
DSP based Audio System
Classroom / Laboratory Management Software
Services Offered:
Study of Client Requirements
Design of Virtual Classroom Solution as per the study
conducted
Deployment of the Design
Training and Maintenance of the Solution |
