An intercom system is a two-way communication
electronic device that contains circuitry for the purpose of
transmitting and receiving audio and/or video transmissions.
With the advent of cellular communication, digital telephone systems,
and other communication devices, the use of intercoms has declined.
However, there are still lots of applications where these devices still
work better than anything else. There are a very wide variety of systems
available as defined below:
Wireless Intercoms: In applications where wires cannot be run,
a wireless system is used. There are a broad spectrum of two-way
wireless communication devices that include such devices as handheld
radios, outdoor wireless callboxes, as well as traditional desktop
devices. The range these units will transmit varies widely based on the
wireless technology used.
Wired Intercom Systems: When you can run wires between
locations, a wired system can give you a little more privacy and
eliminate possible interference from neighboring systems. There are
different wire types such as 2-wire shielded or Cat-5/6 that can be used
with these systems. If you are considering a video system, a wired unit
may be the best solution.
Video Intercom: These typically have a unit that has a camera,
speaker, and a push button that goes at an entrance door, and an
internal monitor unit that can communicate with the entrance unit. Some
systems can have multiple video monitors internally. Given the
difficulty of sending video over the airwaves at very much distance
without interference, most available units are wired.
Apartment Intercoms: This type of system has a door unit at an
entrance door and then each apartment or flat has either one or multiple
units that can speak to the door and possibly see the visitor, or the
door unit rings a landline or cellular telephone number. A visitor
simply presses the correct button for the apartment they want to speak
to, and the tenant can speak back and then press a button to unlock the
Two-Way Radios: While these are technically not
intercoms, there are two-way radios that communicate with base station
intercoms. So you can have the flexibility of a mobile radio that
communicates over long distances mixed with the capability a fixed
intercom gives you.
If you need help in choosing a system, then just call our product
www.IntercomsOnline.com and we will help you choose the right system
for you. You can watch the video below to see the types of
intercoms available and see the links below that for more assistance on
choosing a system for you.