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A video door-phone (also known as a video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building ( residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication between the inside and outside. The main feature of video door entry is ...
4,300+ (2023) [1] AVI-SPL is a multi-office provider of collaboration and audio video technologies, and managed AV services to businesses and organizations. The company installs equipment related to video conferencing and telepresence, digital media systems, audio, security systems, control rooms, and provides onsite staffing.
Door phone. A door phone or door bell phone is a set of electrical and electronic elements used to handle communication between a resident in a house, apartment or villa and a guest outside. The device can also lock or unlock the door it has been configured to work with. Door phones have been used across a variety of commercial and residential ...
Riedel was founded in 1987 in Wuppertal, Germany by Thomas Riedel. [1] Riedel has three business segments: manufacture of communication equipment, rental services, and radio distribution. The company has over 700 employees [2] and is based in the RIEDEL Technologie Park (Uellendahler Str. 353 in 42109 Wuppertal, Germany).
An intercom, also called an intercommunication device, intercommunicator, or interphone, is a stand-alone voice communications system for use within a building, small collection of buildings or portably within a small coverage area, which functions independently of the public telephone network. [1] Intercoms are generally mounted permanently in ...
Clear-Com. Clear-Com, also known as ClearCom, is a manufacturer of electronic intercom products, widely used to enable stage management and crew communications in theatre, filmmaking, video and television production, concerts, professional sports competitions, special events and audiovisual presentations. Providing the first portable party-line ...
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A videoconference meeting facilitated by Google Hangouts. The core technology used in a videotelephony system is digital compression of audio and video streams in real time. The hardware or software that performs compression is called a codec (coder/decoder). Compression rates of up to 1:500 can be achieved.