The E20 is an entry-level personal videoconferencing

Videoconferencing

Videoconferencing is the conduct of a videoconference by a set of telecommunication technologies which allow two or more locations to interact via two-way video and audio transmissions simultaneously...

 system produced by the Norwegian company Tandberg

Tandberg

This article is about the video-conferencing vendor, a Cisco company. Other companies with the same name such as Tandberg Television or Tandberg Data for data storage: see here and here...

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The E20 was introduced in 2008, and started shipping in Q1 2009. The system is intended as a replacement for traditional office telephones. It features a 10.6 inches (269.2 mm) LCD widescreen, a five-megapixel camera, CD quality audio and DVD

DVD

A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....

-quality video.

As a standards based SIP

Session Initiation Protocol

The Session Initiation Protocol is an IETF-defined signaling protocol widely used for controlling communication sessions such as voice and video calls over Internet Protocol . The protocol can be used for creating, modifying and terminating two-party or multiparty sessions...

 system, the Tandberg E20 supports MPEG-4

MPEG-4

MPEG-4 is a method of defining compression of audio and visual digital data. It was introduced in late 1998 and designated a standard for a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group under the formal standard ISO/IEC...

 AAC-LD

AAC-LD

The MPEG-4 Low Delay Audio Coder is audio compression format designed to combine the advantages of perceptual audio coding with the low delay necessary for two-way communication. It is closely derived from the MPEG-2 Advanced Audio Coding format...

 for audio and H.264, H.263+, and H.263

H.263

H.263 is a video compression standard originally designed as a low-bitrate compressed format for videoconferencing. It was developed by the ITU-T Video Coding Experts Group in a project ending in 1995/1996 as one member of the H.26x family of video coding standards in the domain of the ITU-T.H.263...

for video.

The E20 is compatible with Tandberg's new large-scale provisioning solution, introduced in November 2009.