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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 frequencies allotted by various government agencies. Some wireless intercom systems communicate using the 802.11 standard. [1]
1980s MirTone intercom system. 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]
The product line of Clear-Com has expanded beyond party-line wired units to include multi-channel intercoms and wireless technology. Clear-Com patented a multi-channel wired digital intercom system in 2009, used in the HelixNet product line. The company's FreeSpeak wireless intercom was nominated in 2020 for a TEC Award. [7]
After the 1984 Bell System Divestiture, Ohio Bell became a subsidiary of Ameritech, one of the seven original Regional Bell Operating Companies. The Ohio Bell name continued to be used until January 1993, when Ameritech dropped all of its individual Bell Operating Company names in favor of its corporate name for marketing purposes; Ohio Bell ...
If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow toys, code yellow toys." This "code" is one of many innocuous ...
This is a very widely deployed switching system found in Italy, Germany, Belgium, Australia and many other countries around the world. There are a large number of versions of this type of switch ranging from local, to transit to international gateway to mobile switching centers. The line was converted with the E10 family of exchanges. OmniPCX ...
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