Tandberg E20

Last updated
E20
TANDBERG E20.jpg
Manufacturer Tandberg
Availability by country Q1 2009
Dimensions34.7 cm × 31.6 cm(13.7 inches × 12.4 inches)
Weight 1.9 kg (4.2 lb)
Display 10.6 inch (WXGA 1280×768)
Rear camera 5 megapixels (1280 x 720 progressive @30 frame/s)
Connectivity IPv4

The E20 is an entry-level personal videoconferencing system produced by the Norwegian company Tandberg.

Tandberg Manufacturer of videoconferencing systems

Tandberg was an electronics manufacturer located in Oslo, Norway and New York City, United States. The company began in the radio field, but became more widely known for their reel-to-reel tape recorders and televisions. The original company went bankrupt in 1978 after a sharp financial downturn. The following year, the company re-formed whilst their data division was split off as Tandberg Data, including the tape recording division, which reduced its scope to data recording.

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-inch (270 mm) LCD widescreen, a five-megapixel camera, CD quality audio and DVD-quality video. [1]

DVD Optical disc

DVD is a digital optical disc storage format invented and developed in 1995. The medium can store any kind of digital data and is widely used for software and other computer files as well as video programs watched using DVD players. DVDs offer higher storage capacity than compact discs while having the same dimensions.

As a standards based SIP system, the Tandberg E20 supports MPEG-4 AAC-LD for audio and H.264, H.263+, and H.263 for video. [2]

The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating real-time sessions that include voice, video and messaging applications. SIP is used for signaling and controlling multimedia communication sessions in applications of Internet telephony for voice and video calls, in private IP telephone systems, in instant messaging over Internet Protocol (IP) networks as well as mobile phone calling over LTE (VoLTE).

MPEG-4 is a method of defining compression of audio and visual (AV) 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 (MPEG) under the formal standard ISO/IEC 14496 – Coding of audio-visual objects. Uses of MPEG-4 include compression of AV data for web and CD distribution, voice and broadcast television applications.

The MPEG-4 Low Delay Audio Coder is audio compression standard 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 (AAC) standard. It was published in MPEG-4 Audio Version 2 and in its later revisions.

The E20 is compatible with Tandberg's new large-scale provisioning solution, introduced in November 2009. [3]

Tandberg were acquired by Cisco in 2009, and subsequently took over the Tandberg Video Conferencing line, integrating this within the Cisco Telepresence product line. The E20 was migrated to this portfolio, however was made end-of-life in 2012, superseded by desktop solutions such as the DX70 and DX80 product lines.

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References

  1. ↑ TANDBERG Now Shipping its E20 Video VoIP Phone. VoIP Monitor. March 09, 2009
  2. ↑ TANDBERG E20 : specification - updated link for 2015. VideoCentric. 2015
  3. ↑ Tandberg Unveils Video Phone Provisioning App. InformationWeek. November 17, 2009.
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