Technical FAQ's
What is the Telanetix Digital Presence system?
What makes the Digital Presence system different from other group conferencing systems?
What size room can Digital Presence support?
How do users control the system?
Can users share data and applications?
Why is there no Pan and Zoom camera in the Telanetix system?
What type of video and displays are supported?
What are the audio conference capabilities?
What about telephone and audio-only conferences?
What is the Digital Presence System architecture?
What do the Traffic Shaper and Network Processor do?
Can the system work with my legacy conference system?
What is the Telanetix Network?
What is the Telanetix Digital Presence system?
Digital Presence creates a new solution for video conferencing. Digital Presence connects entire room environments, regardless of geographic boundaries to create a virtual conference space where participants appear life size and communicate real time with video, audio, data and application sharing. Digital Presence seamlessly provides video and audio coverage of the whole room by hiding cameras and microphones, thus creating a natural conference environment in which participants are not distracted by the technology.
Beyond the video conference experience, Digital Presence is a tightly integrated solution built from the ground up as a managed service that supports superior performance, ease of use and manageability.
What makes the Digital Presence system different from other group conferencing systems?
The system design takes the technology hurdle and distraction away from the user with a simple interface and with A/V coverage of all participants without the need to switch display views or maneuver cameras and microphones during the interaction. It also provides full-size, high-resolution images to enable the most effective communication, with full eye-contact and body language.
The technology itself delivers eight times the resolution of legacy video conferencing systems in a 2 times 16:9 aspect ratio. A/V streams are delivered over the Telanetix Network for guaranteed performance and quality of service.
What size room can Digital Presence support?
Digital Presence can be configured for rooms that range from executive offices to large auditoriums. The solution works for applications from small conferences to distance learning and remote classrooms.
How do users control the system?
Users interact with a wireless (or wired, if preferred), high resolution, color touch-tablet. The Telanetix Control Panel application provides easy-to-use, non-technical controls that simplify the setup of even multipoint calls. Optional separate accounts and password protection are available for per-user configuration, flexibility and policy management.
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Can users share data and applications?
Data collaboration uses the built-in wireless (802.11 a/b/g) and wired “hotspot” capability with one-click desktop sharing. Desktop sharing allows arbitrary application sharing at full resolution and color depth without impacting the A/V performance. Content screens are separate from the participant screens, so data collaboration causes no interruption of the full-size, real-time interaction of the video conference.
Why is there no Pan and Zoom camera in the Telanetix system?
Fundamental to the design philosophy of the Digital Presence system is the concept that technology should serve the user, not the other way around. Most legacy vendors promote zooming and panning as a feature and automate it to track the source of sound. Zooming and panning is one solution used to overcome the challenge of limited screen space and low resolution video. Rather than zooming and panning, the Telanetix system uses multiple cameras to pick up the entire room while keeping the size of the people on screen life size.
What type of video and displays are supported?
The system supports multiple screen seamless video in widescreen format (2 times 16:9). The default resolution (across 2 displays) is 1280x360, and the system is modular and expandable.
The video encoding is MPEG-4 video at 30 frames per second default and is NTSC and PAL compatible using VGA output video scaled to native display resolution
What are the audio conference capabilities?
Digital Presence provides CD/DVD/Studio quality spatial multi-channel audio.
The default codec is MPEG-4 AAC or MP3. Audio is full duplex with configurable echo cancellation per channel, configurable noise cancellation per channel, configurable automatic gain control and extensive mixer capabilities
What about telephone and audio-only conferences?
The system has the ability to add in a standard POTS telephone call to existing conferences or for standalone audio only use. Remote control dialing makes telephone calls as easy to include as another video site.
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What is the Digital Presence System architecture?
Each conference room will vary; however, the typical system contains the following components:
• Codec Platform
• Network Platform
• Network Switch Platform
• Reference Amplifier
• Reference Speakers
• Microphones
• Camera System
• Mixer and network manager
• Multiple large screen displays
What do the Traffic Shaper and Network Processor do?
The Telanetix Network Manager, in addition to its other security and network performance abilities, features a built-in, fully automatic traffic shaper. This traffic shaper transparently and intelligently manages all traffic to and from the Telanetix Network connection and ensures that real-time traffic such as the Telanetix Digital Presence audio and video traffic is never delayed by other traffic on the network that is less real-time sensitive.
This means, for example, that a live video conference will not be impacted if another network user in the office starts a large file download from a website. The traffic shaper allows video conference participants to share presentations or files over the video conference without any effect to video and audio quality, no matter how large or complicated the shared data may be. Thus, a slide change in a video conference PowerPoint presentation will not cause the image or audio to freeze or jump.
Can the system work with my legacy conference system?
Yes. The recommended solution is to integrate a legacy system on to one of the data collaboration display screens for video. The audio can share microphones and leverage ports on the mixer to control audio levels. The room user interface can be designed to provide a common control system for all room functions, including all conferencing features.
What is the Telanetix Network?
Telanetix systems all communicate using IP (Internet Protocol). Unlike older circuit switched video conferencing networks, which are based on telephone technology like ISDN, IP networks have no central switching facility. Packets of information are routed through the network by various paths as determined by network load, and reassembled at the destination to recreate the stream. Traffic between the systems is routed through the IP network directly from one system to another, without passing through a centralized switching facility.
Multistream Audio/Video traffic is the most demanding on the network. It requires the ability to have sustained, relatively high bandwidth connections while also requiring very low latency, both in terms of actual packet transit times and also the amount of out-of-order packet delivery. The type of bandwidth required is typically not available over normal Internet connections.
Thus, Digital Presence uses a private, broadband, IP network—the Telanetix Network. The network also includes tier one Internet connectivity and provides access to the Telanetix Network Operations Center (NOC) for value-add services.
The Telanetix Network is a broadband IP network with global reach. Typical connections start at 5 Mbps, and can be scaled to any size needed by an individual customer, depending on the configuration and local loop restrictions. The network can reliably deliver IP traffic with an average round trip latency of under 60 ms within North America and under 300 ms worldwide. Jitter is typically less than 15 ms with guaranteed maximum average packet loss of under 0.25%. All this means that the video conference experience is optimized when delivered over the Telanetix Network.
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