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Intercom systems

Intercom systems are used for communication within a building, as security in accessing buildings, and have a variety of uses with audio/video systems. There are four main types of intercom systems: wireless, wired, door entry, and audio/video. Read on and learn all that youíll need to know about intercom systems uses, types, and how they work.

Residential Use

Intercom systems are used in a variety of ways for residential use. Intercom systems make it convenient to communicate with other members in the family from one room to another without having to shout. Intercoms are also helpful to people who are confined to a wheelchair or bed and need to ask for help or communicate with caregivers. In addition, parents can monitor their newborn babies using an audio/video intercom system.

Intercom door entry systems are also useful for security in residential homes. A guest will push the intercom button or punch in a code on the intercom system and when you answer the telephone you can either push a button to allow entry or to not allow entry. These systems are connected to a gate or a door lock and will open the gate or unlock the door if you choose to allow guest entry.

Commercial Use

Commercial intercom systems also have a wide variety of uses. Intercom systems can be used to communicate between different points within a facility or between different buildings that are close together. In addition, intercom systems can incorporate connections to loudspeaker systems, telephones, walkie talkies and other intercom systems.

Intercom systems also function independent of the telephone network and can be used if privacy is a concern. Manufacturers make encrypted wired and wireless systems for corporate customers.

Another main commercial use of intercom systems is the door entry system. The intercom door entry system helps to address security concerns. These systems typically have multiple door entry points with a central security communication monitor point allowing security personnel to receive calls from a variety of locations and then they can make decisions about requests for access. Since these systems have video monitors they are an excellent way to keep track of who has entered a point of entry in a facility with records of exact times.

Wired Intercom Systems

When intercoms are mounted permanently in buildings wiring within a building is required. This can be expensive, but a permanent mount is typically preferred because wired intercom systems work well and there isnít any interference or problems with these types of systems that wireless intercoms systems can have. Retrofitting a building for a wired intercom system is worth the cost because these types of systems are reliable and well-functioning.

Wireless Intercom Systems

Wireless intercom systems are preferred by many because they are easy to install. No wiring is required within a building to use a wireless intercom system. A wireless intercom system can be taken out of a box and be installed and working within a few minutes.

Wireless intercom systems allow people to communicate through radio waves. The downside to wireless intercom systems is that conversations can be overhead in close range. Neighbors who have devices similar to a wireless intercom system may hear your conversations through scanners, cordless phones, baby monitors, or similar wireless intercom systems. Manufacturers do sell encrypted intercom systems if privacy is a concern.

Dependability is also a concern since radio waves can be scratchy if the incorrect range is purchased. Experts recommend purchasing a wireless intercom system that will cover a higher range (in the miles) than what you would actually need to ensure reliability and dependability.

Intercom Door Entry Systems

Intercom door entry systems are used for security. They can be used with or without a video monitor. These systems work with an existing telephone or intercom system.

The guest pushes a button on the intercom system or dials a code and you or a security guard can decide to let that person in or allow them to have access to a portion of a building. Intercom door entry systems provide an increased level of security and with video monitoring a record of who enters a building or portion of a building along with records of exact times.


Intercom systems can be customized for residential and commercial use. Intercom manufacturers are adding new features and interfacing options all the time. Portable and permanently mounted intercom systems can interact and are used in theatres, concert halls, and on motorsports race tracks.

In addition, the military and transportation companies use intercom systems in watercraft, aircraft, trains, and armored fighting vehicles. Manufacturers are willing to customize intercom systems for particular residential and commercial needs.

In conclusion, intercom systems have a wide variety of residential and commercial uses. Wired intercom systems are more expensive and time consuming to set up, but are reliable and dependable systems. Wireless intercom systems can be set up in minutes, but may not always be the most private and reliable of systems. Ask an expert to help you to pick the best system for your home or company.