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There are two main types of commercial of office intercom systems, wireless and wired. There are two types of wireless intercoms also, 900 MHz, which operate as a cordless phone and they can be plugged in or run off batteries, which comes in handy during a power outage. Line Carrier Wireless Intercom systems utilize your offices electrical lines to move the sound from one unit to another. They must be plugged into electrical outlets at the wall rather than into surge protectors or multi-plex outlets. In addition, they must be in outlets that are on the same office breaker box, not separated by sub-panels or by different breaker boxes. For optimal operation they should be plugged into outlets on the same phase or leg of the breaker box. When these operational conditions are met, these commercial wireless intercoms systems are able to operate consistently and clearly.
Commercial Wireless Intercom Systems are extremely easy to install, especially for offices that are already built. They are also quite easy to operate. One of the main reasons to use wireless intercoms is that the cost of retrofitting a commercial office building for a wired system is high. Another reason is portability. With many wired systems a user who is seated typically has to get up and go to a wall mounted station to use it. There are a few wired systems that have desktop office intercom units. With wireless systems, a person can put an intercom unit anywhere they want. Most require AC power so they still need to be near an electrical outlet. Other units are battery powered so they can be carried around from location to location.
Purchase at the G.I.N. Electronics Custom Install Store