An intercom (intercom) is a means of communication that allows two or more people to have a conversation or communicate in some way through different rooms or departments in a structure (e.g., a building, ship, airplane, etc.). This communication via an electrical circuit device is türsprechanlage most often permanently mounted in building structures (whether commercial or residential) or vehicles (e.g., airplanes, ships, buses, etc.).

Intercom connections can take the form of walkie-talkies, telephones, and cellular phones over a telephone or data line. Intercom systems are mainly used for communication within a building. For example, you can have an intercom system in your house to monitor what's going on in your child's room, or to communicate with your spouse or another family member in another part of the house.

Intercoms come in a variety of designs. Some are extremely easy to use while others can be very complicated. There are audio intercoms, video intercoms, embeddable and multi-tenant intercoms. Among the leading manufacturers of intercoms are Aiphone, Quantometrix and Vitec Group Communications. These companies offer a variety of communication systems consisting of audio, audiovisual, IP network intercoms, apartment entrance intercoms, nurse call and bowling alley intercoms.

Audio intercoms

Also known as voice intercoms, audio intercoms have a main unit and other smaller units in different parts of a building, allowing communication between the main part of the building, such as a living room or kitchen, and smaller parts of the building, such as bedrooms or restrooms. Some audio intercoms play music through the system. If you have a baby in the house, audio intercoms can be used as baby monitors. This way you can hear when the baby is crying or if he is sound asleep.

video intercoms

Video intercoms have the same capabilities as their voice/audio only counterparts, but in addition to voice or audio communication, a small video screen lets you see what's going on in different parts of the building. This is a great tool for families with children. Parents or other adult family members can watch your kids playing in their room or garden while they are preparing dinner in the kitchen. Video intercoms are also useful for finding out who is at the door before you open it. Some sophisticated video intercoms allow you to unlock your front door from another location.

Business intercoms

Intercoms offer a number of uses for businesses by allowing them to communicate with multiple employees at the same time. For example, a large office or warehouse full of employees can be reached simultaneously by a single employee using an intercom. Department stores and grocery stores use intercoms to communicate with both employees and customers. These stores are able to update customers about sales, closing times or any other topic.


Intercom systems consist of different parts and are therefore sometimes referred to as intercom systems. These parts include main or base stations, door stations, bus stations, türsprechanlage belt pouches, handsets, headsets and power supplies. Intercom systems come in a variety of types, including two-wire broadcast intercoms, four-wire broadcast intercoms, wireless intercoms, and telephone intercoms.