Intercom systems have been around for over a century and have been used in offices, schools, and for access control of a property. Despite the age of this technology not many people know much about them or how they work.

That is why we decided to write this article to take a closer look at intercom systems. We will look at what an intercom is and the history of the technology. We will also answer the question of how do intercoms work? We will do this by examining the components of an intercom system and its respective functions. All to help you better understand this useful technology, so you can decide if it will help make your life better.

What is an intercom?

The word intercom is a combination of the words “internal communication” which is exactly what this device facilitates. An intercom system is defined as an electronic device that allows for one-way or two-way communication. This is usually limited to a predetermined network and functions independently of the telephone network, or the Internet. That means that while an intercom system does need electricity to function, it doesn’t need an internet connection. While these systems can be used in a variety of ways they are primarily used for communication and property access control.

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History of the intercom

Before we answer the question of how do intercoms work? We thought we would take a look at the history behind these devices. Before the development of telephone technology businesses used systems like speaking tubes for inter-office communication. These were metal tubes that would carry voices between two people in the same building. This was the first implementation of an intercom system though they have changed drastically since then.

The invention of the telephone led to the development of more advanced intercoms in the 1890s. These simple systems linked two phones in two separate offices. However, companies rapidly developed these into more complicated systems with a central station to connect with other offices. All this is separate from the telephone network of the city.

Beginning in the 1950s intercoms started being used as an electronic doorman for apartment buildings. This allowed people to buzz the person they want to visit in an apartment building, talk to them and identify themselves. Then the person inside could hit a button that opens the front door granting the visitor access.

These systems have only improved since then. As digital communications technology developed intercoms became more advanced. This included wireless intercom systems that communicate by radio frequencies that became available in the late 1940s. Additionally, systems that incorporated video, as well as audio, became available in 1982.

These advancements have continued to this day. With newer intercom systems even having internet connectivity. Allowing them to reach you on your smartphone as long as you are connected to the internet. As you can see these systems have a long history and continue to change and grow in the modern world. Though it is all based on the same technology as the telephone.

How do intercoms work?

To understand how intercoms work we must look at the components of an intercom system. While there are many different types of intercom systems we will focus on those used for access control. Though all intercom systems have the same basic components.

Base stations

The base station also known as the master station is the primary component of an intercom system. This station is installed at the entrance of your property and is connected to all of the substations in the system. This master station controls the entire system and is connected to the gate or door automation system allowing it to open the entrance.

Substations

The substations are located inside the property. They allow those inside to communicate with visitors at the base station, and to open the entrance with the push of a button. In the past substations were physical pieces of hardware with microphones and speakers mounted somewhere inside the house/building. These were installed throughout the building and were hardwired directly to the base station. However, many modern intercom systems don’t have substations and instead rely on users’ smartphones to act as substations for the system.

How do intercoms work?

Now that you have an understanding of the components that make up an intercom system we can look at how they work to make your property more secure. An intercom system allows visitors at the entrance to contact the occupants of a building directly to request access. The occupants inside can speak to the visitor, and even see them with modern video camera intercoms, to determine their identity. The occupant can then decide if they want to grant access to the visitor.

This system helps to keep your property secure by giving you control over who can enter. Additionally, through voice and video transmission you can easily determine the identity of potential visitors without leaving the safety of your home. This keeps you safe from potential intruders as they cannot threaten you to gain access to the property. Ensuring your safety and the safety of your loved ones.

Where to get an intercom system.

Now that we have answered the question of how do intercoms work? You may be wondering where you can get one for yourself. Fortunately, the experienced professionals at Lockfront Automation are ready to help. They can provide you with modern intercom systems that are perfect for your property’s unique needs. Additionally, with their commitment to providing the best service at an affordable price, you are assured that you are getting value for your money. So contact them today to make your home completely secure using intercom systems.