Video intercom systems have evolved from simple communication tools to sophisticated security devices essential in residential, commercial, and industrial settings. These systems enable audio and visual communication between occupants and visitors. Adding a layer of security, convenience, and peace of mind. This article explores the different types of video intercom systems, their components, benefits and installation considerations
What is a Video Intercom System?
A video intercom system is a building access management tool featuring a camera, a method of audio communication, a connected door locking mechanism and an access management platform. Usually, one device will be mounted permanently at a point of entry, like a doorway or gate. The wall-mounted intercom has circuitry that allows visitors to announce their arrival. It will also have a video camera that allows the end user to see a live video feed of the person seeking access to the building.
Types of Video Intercom Systems
Wired Video Intercom Systems
Wired systems connect directly to the building’s electrical and communication systems. They are highly reliable, especially in high-traffic areas. Because they are less prone to interference and maintain consistent video and audio quality. However, installation can be complex and costly due to the wiring requirements.
Wireless Video Intercom Systems
Wireless systems use Wi-Fi or other wireless technologies, making installation simpler and less invasive. These systems are ideal for homes and businesses where wiring is impractical. However, they may experience signal issues in areas with thick walls or other obstructions.
IP-Based Video Intercom Systems
Internet Protocol (IP) intercoms connect through a network, enabling remote access and control. Users can view video feeds and interact with visitors from their smartphones, tablets, or computers. IP-based systems are particularly useful in commercial settings where multiple access points and security levels are needed.
Smartphone Video Intercom
These are video intercoms that connect to your smartphone through a mobile app. Most mobile app video intercoms are IP based devices. Some of them allow mobile door release whereas others can enable full system management and monitoring through mobile apps.
Multitenant Intercom Systems
Designed specifically for multi-unit buildings, these intercoms allow tenants to communicate with visitors at a shared entrance. Advanced systems integrate with property management systems, streamlining visitor access and security.
Components of Video Intercom Systems

Readers for video intercoms
The main focal point of a front door video intercom system with camera is usually the reader unit: a device that features an integrated camera (a video intercom reader), a touchscreen or keypad, a monitor plus a microphone, speaker and buzzer or doorbell. This device is often referred to as the base station and will be installed at the entry point. Regardless of how complex the door entry reader is, its main purpose is to allow visitors to send a request to the building occupant which can then be used to initiate a 1 or 2‑way video intercom call.
Camera system
Connected to the door entry reader will be an integrated video camera. This device will be capable of sending live video footage to the building occupant either via internal wiring or a Wi-Fi connection.
It’s important to choose the best video intercom systems capable of recording high-definition footage to ensure that the occupant always has a clear image of the visitor. Consider night vision and low-light recording settings if you plan to use the system at all hours.
Look for features like motion detection to trigger recording and weather and impact resistance for outdoor door entry intercoms.
Recording device
To get the most out of a door intercom with camera functionality, the system should be capable of recording and storing video footage and audio within its own dedicated video management software, or with on-device storage. This feature enables property owners to analyze past footage and images. Using them to review potential intrusion events and develop more effective security protocols.
Video management solutions can be designed to either store footage locally on a computer server or be integrated alongside a cloud-based platform. The latter option presents several unique benefits such as the ability to view footage remotely and automatic file sync to prevent data loss.
Monitoring system
Any front video door intercom system with camera functionality needs to be equipped with a real-time monitoring system that can be accessed by tenants. For a single receptionist or security desk, this can consist of a single hardware monitor or smart device. However, multi-occupant video doorbell systems require installing several wired substations in each office or unit, or providing an interconnected web app accessible to all tenants.
Power supply
Each component of the video intercom system must be connected to a reliable power source. The intercom can be powered by a main power supply, or a PoE system if the video intercom is connected to a data network.
In either configuration, ensure the system has access to a backup generator to prevent service loss during a power outage or internet interruption.
Benefits of Video Intercom Systems

Enhanced Security
One of the primary advantages is its ability to bolster security measures. With real-time video and audio monitoring of individuals at entry points, users can communicate with and visually identify visitors before granting access.
Their ability to capture clear and detailed footage of visitors gives video intercom systems a significant security advantage over their audio-only counterparts. Allowing residents or employees to make informed decisions when granting access and minimizing the risk of unauthorized entries.
In addition to real-time monitoring, users can rely on recorded visual footage as evidence in the event of an incident. If there is a security breach or suspicious activity, the recorded video can be critical in identifying and providing vital details during an investigation.
Improved Access Control And Visitor Management
Advanced access control features in video intercom systems can enhance visitor management by giving users more effective control over who enters their premises.
Smart technology integration, for example, enables you to access and manage these systems remotely using smartphones, tablets, or computers. This feature is incredibly convenient and adds extra security by ensuring you’re well aware when visitors are trying to gain access.
You can combine video intercom systems with other security systems, such as door locks or security cameras, to create a streamlined and secure access control process. For example, when you verify a visitor via video intercom. The door lock can be remotely or automatically unlocked, allowing for seamless entry.
Visual record keeping
Intercom systems can be configured to provide time-stamped records of building access, with these networks integrated alongside a visitor management system to create a reviewable database. By implementing such a system, building staff are presented with a reliable record of comings and goings which can be used to review potential incidents and collect necessary evidence.
Improved Property Value
For residential and commercial properties, a video intercom system can add value by enhancing security and modernizing the building’s infrastructure.
Better Convenience
Instead of moving to the door to verify a visitor’s identity or grant access, homeowners can pick up their smartphone or device to see and interact with the visitor in real-time.
A video intercom system also simplifies visitor management in a commercial setting where employees may be preoccupied with important tasks. Employees can view and communicate with visitors remotely, granting access or gathering information without leaving their workstations.
They are also helpful when homeowners or business owners are absent. Suppose a package arrives while the owner is away. In that case, they can view and communicate with the delivery person remotely to provide instructions or request that they leave the parcel in a secure location.
Installation Considerations
- Location and Coverage: The placement of cameras is crucial for optimal coverage. Cameras should cover main entry points and, in commercial settings, additional areas like parking lots or secondary entrances.
- Power source: Wired intercoms require a dedicated power source, whereas wireless systems may run on batteries or rely on nearby outlets. It’s important to consider backup power options for continuous operation during outages.
- Network requirement: IP and wireless intercoms depend on a strong network connection. Assessing the network’s capacity and installing signal boosters can enhance performance, especially in larger buildings.
- Compatibility and integration: Many intercom systems can integrate with other security and automation systems, like CCTV or access control. Ensuring compatibility with existing systems can improve functionality and avoid future compatibility issues.
- User training: Simple user interfaces are a must for residential buildings, while commercial settings may require more comprehensive training. Familiarizing users with essential features reduces the risk of misuse and improves security outcomes.
Conclusion
Video intercom systems are essential in today’s security landscape. They offer practical communication and a critical layer of protection for homes and businesses. With various options available, these systems are adaptable and feature-rich, making them suitable for many environments. Choosing the right system and tailoring it to specific needs can boost security and add convenience.
