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2. Intercom - Wikipedia

   en.wikipedia.org/wiki/Intercom

   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 ...

3. Riedel Communications - Wikipedia

   en.wikipedia.org/wiki/Riedel_Communications

   RIEDEL Communications GmbH & Co. KG (formerly Riedel Funk- und Intercomtechnik) is a German manufacturer of communications equipment and an equipment distributor. 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.

4. Video door-phone - Wikipedia

   en.wikipedia.org/wiki/Video_door-phone

   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 ...

5. Wireless intercom - Wikipedia

   en.wikipedia.org/wiki/Wireless_intercom

   A wireless intercom is a telecommunications device that enables voice communication without the need to run copper wires between intercom stations. A wired intercom system may incorporate wireless elements. There are many types of wireless intercom systems on the market. Most wireless intercom systems communicate by radio waves using one of the ...

6. Public address system - Wikipedia

   en.wikipedia.org/wiki/Public_address_system

   Battery-powered systems can be used by guides who are speaking to clients on walking tours. Public address systems consist of input sources (microphones, sound playback devices, etc.), amplifiers, control and monitoring equipment (e.g., LED indicator lights, VU meters, headphones), and loudspeakers.

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Multiple-camera setup - Wikipedia

   en.wikipedia.org/wiki/Multiple-camera_setup

   A camera setup recording a "bullet time" effect. The multiple-camera setup, multiple-camera mode of production, multi-camera or simply multicam is a method of filmmaking, television production and video production. Several cameras—either film or professional video cameras —are employed on the set and simultaneously record or broadcast a scene.

9. Intercom, Inc. - Wikipedia

   en.wikipedia.org/wiki/Intercom,_Inc.

   Revenue. US$200 million (2021)[1] Number of employees. 1,013 (2022) [2] Website. intercom.com. Intercom, Inc. is a software company that specializes in business messaging, providing businesses with a way to chat with their customers. [3] Intercom has its headquarters in San Francisco with offices in Chicago, Dublin, Sydney and London.