How do Intercom Systems Work?

How do Intercom Systems Work?

An intercom system is a communication system that enables someone to speak with others in person or over the phone. They are often found in large buildings, such as high-rise apartment complexes and office towers, but can also be installed at home for convenience. Intercom systems allow you to stay connected and up-to-date with what’s happening around your building or house without having to worry about missing out on something important. If you’re wondering what an intercom system is, then you’ve come to the right place. Easy Security Systems provide bespoke intercoms for both domestic and commercial customers ideal for added security. Here’s everything you need to know about these systems, how they work and their benefits.

Intercom System Types

An intercom system can be divided into two main categories: analog and digital. These classifications are based on the technology used in each type of system. Both types of intercom systems can be used for residential and commercial applications.

  1. Analog Intercom Systems – An analog system uses two-wire twisted pair (telephone) wires to transmit signals from one location to another. The system is flexible, as it doesn’t rely on a hard-wired connection; the signal only needs the wires to be run to the desired location. It’s also very easy to install, as you just have to plug in the two-wire system and it’ll work right out of the box.
  2. Digital Intercom SystemsA digital intercom system is powered by the same technology used to broadcast messages over your television, radio, and internet. This allows it to communicate with other locations that are hundreds of feet away without any problems. Digital systems use two-way radio frequencies to transmit messages from one location to another via radio waves. With this system, you don’t have to worry about the signal being intercepted by other people because it’s encrypted. This also makes it a great choice for homes that face busy streets or where there might be a lot of interference from household appliances and services.

Intercom System Functions

An intercom system can perform several functions, including greeting guests and tenants, alerting occupants about visitors, opening locked doors for approved individuals, communicating with people who are facing technical problems, and more.

Benefits of an Intercom System

There are many benefits to using an intercom system in your building or home, below are seven intercom system benefits.

Prevent Crime

An intercom system can make it easier for residents to monitor the activity of visitors at their door. This reduces the risk of crime because you can identify people who are waiting outside before opening your door. It’s also less likely that someone will enter your building if they know that they’ll be seen by security or staff, which helps increase overall security.

Convenient Communication

Intercom systems create a virtual communication network that allows you to stay connected with others at all times, even if they’re not in the same location. You can use these systems to communicate with your family members or significant other while away on business, keep an ear out for your kids while at work, and more. These systems are much more secure than traditional intercoms because they encrypt messages so other people can’t listen in on your conversations.


One of the best things about digital intercom systems is that they’re versatile and can be used in just about any type of building or home. You can even find systems that are designed to work outdoors, which makes it easy to control access to patios, decks, garages, sheds and other areas where you need exterior security.

Time-Saving Device

Most people don’t like to spend time opening and closing doors for guests, contractors, deliveries, etc. With an intercom system in your building or home, you can open doors remotely via smartphone or computer devices. This saves time and energy because it’s easier to do things when you aren’t expecting visitors.

Less Paperwork

Managing an intercom system is far more convenient than having to keep track of keys, cards, security codes, and other types of physical media. You can use your smartphone or laptop devices to manage this system even while away from the building or home.


Most digital intercom systems come with touchscreens or keypads that you can use to operate the system. You can also configure these systems to work with your smartphone or tablet. These features make it easy to install and use intercom systems, even for people who aren’t very tech-savvy.

Healthy Environment

Infections are easily transmitted from one person to another through hand contact. Because of this, you must avoid touching door handles as much as possible. This is where an intercom system comes in handy because it allows you – or others – to open doors automatically, which reduces the chance of spreading germs.


Intercom systems are popular for homes and offices because they make it easier to open doors, monitor activity outside the building, communicate with others, etc. These devices are also easy to install and use. This makes them ideal for anyone who wants a convenient way to stay connected without having to manage complicated equipment.