Choosing between a video intercom system and a video doorbell starts with understanding how the entrance needs to be managed, rather than choosing a product based on its appearance or camera resolution.
Both technologies allow users to see and communicate with visitors before opening the door. However, their main functions can differ, particularly when it comes to access control, indoor monitoring, installation requirements and integration with other security equipment.
For professional installers, G-TEC supplies Hikvision video intercom systems, door stations and indoor monitors, alongside smart video doorbell solutions from Pyronix. These products provide different options for residential and commercial door entry requirements.
This guide explains the differences between video intercoms and video doorbells, the features available with each system and the factors installers should consider when selecting equipment for a project.
Explore G-TEC's video and audio entry equipment.
What Is a Video Doorbell?
A video doorbell combines a traditional doorbell with a camera and audio communication, allowing users to see and speak to visitors at their entrance.
Smart video doorbells can also provide live viewing, motion alerts and video recording, depending on the model selected.
For example, the Pyronix DoorbellCam2 available through G-TEC is a 3MP QHD Wi-Fi video doorbell featuring two-way audio, PIR motion detection, an onboard siren and real-time video.
Its adjustable detection area allows users to select where motion should trigger alerts, helping reduce unnecessary notifications from nearby paths or roads.
The DoorbellCam2 can operate independently or as part of a wider Pyronix security setup, with control available through the HomeControl2.0 application.
For an installation focused primarily on monitoring the entrance, communicating with visitors and receiving motion notifications, a smart video doorbell can provide a practical solution without necessarily requiring a complete video intercom system.
What Is a Video Intercom System?
A video intercom system provides visual and audio communication between an entrance and an internal monitoring point.
Unlike a standalone video doorbell, a typical video intercom installation is built around connected components such as an external door station, an indoor station and, where required, compatible door-locking equipment.
When a visitor calls from the entrance, the system allows an occupant to view and communicate with them using the indoor station or other supported devices.
Depending on the equipment selected, users may also be able to unlock a connected door remotely, view additional cameras or manage access using credentials.
G-TEC supplies Hikvision IP video intercom equipment that supports these functions.
For example, the Hikvision DS-KIS613-S IP video intercom kit includes a door station, indoor station and PoE switch. Its listed features include a 4MP camera, a 150-degree viewing angle, control of two locks and unlocking through cards, Bluetooth, Hik-Connect or the indoor station.
Video intercom systems are therefore particularly relevant where identifying visitors is only one part of the requirement and controlled door entry is also important.
Video Intercom vs Video Doorbell: Main Differences
Although video intercoms and video doorbells share several features, the main differences become clearer when looking at how the systems are used.
|
Feature |
Video Doorbell |
Video Intercom System |
|
Main purpose |
Visitor monitoring, doorbell calls and alerts |
Visitor communication and door entry management |
|
Visitor communication |
Two-way audio with video viewing |
Two-way audio and video through door stations and compatible devices |
|
Indoor monitoring |
Often centred on a mobile app, with optional accessories depending on the product |
Can include dedicated indoor monitoring stations |
|
Door unlocking |
Depends on the product and any supported integration |
Available on compatible systems with connected locks |
|
Motion detection |
Available on models such as Pyronix DoorbellCam2 |
Depends on the selected door station and system |
|
Feature |
Video Doorbell |
Video Intercom System |
|
Installation |
Varies by model, including Wi-Fi and battery-powered options |
Includes IP, PoE and two-wire system options |
|
System expansion |
Depends on the product ecosystem |
Modular and multi-component options are available |
These are typical differences rather than fixed limitations. Some features overlap, and the capabilities of the specific products should always be checked.
Visitor Monitoring and Motion Detection
For installations where the main requirement is monitoring activity around the front door, a video doorbell may provide the necessary functionality.
The Pyronix DoorbellCam2 combines video, two-way communication and PIR motion detection within a single device.
This allows users to receive alerts about activity near the entrance and check the live camera view without relying solely on someone pressing the doorbell.
The ability to adjust the motion detection area is useful where nearby movement could otherwise generate unnecessary notifications.
Video intercom systems can also provide video monitoring, but their functionality is generally focused on communication between the entrance and connected stations, together with any access-control features required by the project.
Door Unlocking and Access Control
One of the most important distinctions is whether the installation needs to control who can enter the building.
Video doorbells are particularly useful for identifying and speaking to visitors. However, installers should not assume that every video doorbell can operate an electric lock or form part of a door access-control system.
By comparison, selected Hikvision video intercom equipment supplied by G-TEC includes built-in lock-control functionality.
The Hikvision DS-KV6114-WBE1 villa door station, for example, supports control of two locks and unlocking through cards, Bluetooth, Hik-Connect or a compatible indoor station.
This allows the video communication function to be combined with controlled entry when the appropriate locking hardware and system configuration are used.
For offices, commercial entrances or residential properties requiring electronic door access, these capabilities can become an important part of the specification.
Indoor Screens and Mobile Access
Another consideration is how users will answer visitor calls.
Smart video doorbells commonly provide mobile-app access for viewing the entrance and speaking to visitors.
The Pyronix DoorbellCam2 is managed through HomeControl2.0 and provides real-time viewing and two-way communication.
Video intercom systems can offer a different arrangement through dedicated indoor stations.
G-TEC supplies the Hikvision DS-KH6320-WTE1 IP indoor station, featuring a 7-inch colour touchscreen with a resolution of 1024 × 600.
This indoor station supports viewing live video from compatible door stations and linked cameras, storing messages and captured pictures on a TF card, and remote unlocking through compatible software or mobile access.
Having a dedicated indoor screen can be useful where occupants need a fixed point from which to answer entrance calls.
However, mobile control is not exclusive to video doorbells. G-TEC's Hikvision intercom range also includes models supporting the Hik-Connect app.
Installation and Power Requirements
The available cabling and network infrastructure can influence which door entry solution is most appropriate.
Video doorbells and video intercom systems do not all use the same power or communication methods.
The Pyronix DoorbellCam2 is a Wi-Fi video doorbell with a rechargeable battery and USB-C charging.
Hikvision's video intercom range includes IP equipment using Power over Ethernet (PoE), as well as two-wire intercom products.
For example, G-TEC's Hikvision DS-KD8003-IME1(B) modular door station supports standard PoE, while the DS-KIS702Y is listed as a two-wire digital IP video intercom kit.
For installers, the existing infrastructure should be considered alongside the required functionality.
The most appropriate choice will depend on where the equipment needs to be installed, the available power supply, the network arrangement and the system components being connected.
Recording and Integration
Recording capabilities are another area where the two technologies can overlap.
The Pyronix DoorbellCam2 supports local SD card recording. G-TEC also lists a DoorbellCam2 kit supplied with a chime and 32GB SD card, allowing footage to be stored locally without requiring cloud storage for that function.
Selected Hikvision intercom equipment also supports local storage.
For example, the DS-KIS604-P(C) video intercom kit includes a TF card and supports storing messages and captured images.
The difference is therefore not simply that one technology records footage while the other does not.
Installers should consider how the footage or visitor information needs to be accessed, how recordings will be stored and whether the door entry equipment needs to operate alongside other security devices.
What Equipment Makes Up Each System?
The equipment required will depend on whether the project uses a standalone video doorbell or a more extensive video intercom installation.
Video Doorbell Equipment
A smart video doorbell generally combines the entrance camera, call button, microphone and speaker within one device.
Depending on the model and chosen package, additional components may include a chime, storage card, charging equipment or compatible security products.
For example, G-TEC's Pyronix range includes the DoorbellCam2, a separate doorbell chime and a kit combining the doorbell with a chime and 32GB SD card.
The DoorbellCam2 can also operate as part of a wider Pyronix security setup rather than being limited to standalone use.
Video Intercom Equipment
A video intercom system can require several connected components.
The external door station provides the entrance camera and visitor communication point. An indoor station allows occupants to view and respond to calls from inside the building.
Depending on the system design, the installation may also include compatible electronic locks, power supplies, PoE switches, mounting accessories and additional door-entry modules.
G-TEC's Hikvision range includes complete kits as well as individual components, allowing installers to select equipment based on the required configuration.
For projects requiring additional entrance functionality, Hikvision's KD8 modular door-station range also provides a different approach from a fixed standalone unit.
Hikvision Video Intercom Systems
Hikvision provides a range of video entry equipment available through G-TEC, including IP video intercom kits, modular door stations, indoor monitors and two-wire solutions.
Different products address different installation requirements.
Hikvision DS-KIS613-S IP Video Intercom Kit
The DS-KIS613-S is a complete IP video intercom kit combining a door station and indoor station with the networking equipment and accessories included in the package.
Its listed features include a 4MP camera with a 150-degree viewing angle, control of two locks and multiple unlocking methods.
These include card access, Bluetooth, Hik-Connect and the indoor station.
The package also includes a PoE switch, a 32GB TF card, an administrator card and five key fobs.
For installers specifying a video entry system with both visitor communication and electronic access-control requirements, this provides several of the main components within one kit.
Hikvision DS-KIS604-P(C) IP Video Intercom Kit
Another option available through G-TEC is the DS-KIS604-P(C).
This is an IP video intercom kit designed for villa or house applications.
It includes a door station, indoor station, power adapters and a 16GB TF card.
The system supports Hik-Connect mobile control and can store messages and captured pictures on the TF card.
This makes it an option for residential installations where an indoor communication station and mobile access are both required.
Hikvision KD8 Modular Door Stations
For projects requiring a modular approach, G-TEC supplies Hikvision KD8 Series door-station equipment.
The DS-KD8003-IME1(B) is a modular door-station main unit featuring a 2MP fisheye camera with infrared illumination, a physical call button and control of two locks.
It supports standard PoE and has an IP65 protection rating.
G-TEC also lists compatible KD8 accessories and modules, including keypad and name-tag options.
This allows installers to consider a modular entrance design rather than relying solely on a fixed kit configuration.
Pyronix Smart Video Doorbells
For projects where entrance monitoring and mobile communication are the main requirements, G-TEC supplies smart video doorbell equipment from Pyronix.
Pyronix DoorbellCam2
The Pyronix DoorbellCam2 is a 3MP QHD Wi-Fi video doorbell designed to provide video monitoring and two-way communication at the entrance.
Its main features include PIR motion detection, adjustable motion detection areas, an onboard siren, live video viewing and two-way audio.
The device can operate independently from a security control panel or integrate with compatible products in the Pyronix ecosystem through HomeControl2.0.
It also supports local SD card recording, providing an option for storing footage without relying on a cloud-storage subscription.
For installers, the main consideration is whether these functions meet the requirements of the property.
Where the objective is to monitor deliveries, identify visitors and communicate through a mobile device, the DoorbellCam2 may provide the necessary functionality without the additional components of a complete video intercom system.
Pyronix DoorbellCam2 Kit
G-TEC also lists the DOORBELL2/KIT-SDC package.
This combines the Pyronix video doorbell with a chime and a 32GB SD card.
The doorbell offers 3MP video, adjustable PIR detection, two-way audio, an onboard siren and local recording.
The package provides installers with a video doorbell solution that includes both the entrance device and supporting accessories.
How Should Installers Choose Between the Two?
There is no single door entry solution that is right for every property.
A useful starting point is to understand what the system needs to accomplish and how users will interact with it.
Is Visitor Monitoring the Main Requirement?
If the primary requirement is to see who is at the door, communicate remotely and receive motion alerts, a video doorbell may be sufficient.
The Pyronix DoorbellCam2 provides these features within a single device and can be used without a separate alarm control panel.
Does the Installation Require Door Access Control?
If the system needs to operate compatible electronic locks, the installer should assess whether dedicated video intercom equipment is more appropriate.
Selected Hikvision door stations and intercom kits supplied by G-TEC support lock control and additional unlocking methods.
The correct choice will depend on the locking equipment, the access requirements and the compatibility of the individual components.
Is a Dedicated Indoor Station Required?
Some projects may benefit from a fixed indoor screen rather than relying entirely on mobile access.
Hikvision's video intercom range includes indoor stations that allow occupants to communicate with visitors, view connected door stations and use supported unlocking functions.
This can make a video intercom system more appropriate where a dedicated indoor control point is part of the specification.
What Installation Infrastructure Is Available?
Installers should consider the existing cabling, network connectivity, power requirements and mounting locations.
A Wi-Fi video doorbell may suit one project, while an IP video intercom system using PoE or a compatible two-wire solution may be more suitable for another.
The installation requirements of the specific equipment should be checked before a final decision is made.
Will the System Need Additional Functions?
A project may initially require only visitor monitoring but also need access control, additional stations or integration with other security equipment.
G-TEC's Pyronix doorbell range supports standalone use and compatible Pyronix security integration, while its Hikvision intercom range provides kits and individual components for different door entry configurations.
Installers should consider the required functions and any planned expansion before choosing the final equipment.
Choosing Video Door Entry Equipment from G-TEC
G-TEC supplies professional security equipment to installers across the UK, including CCTV, intruder alarms, fire detection, networking, access control and video intercom systems.
For projects requiring video door entry equipment, its offering includes Hikvision IP video intercom kits, modular door stations, indoor monitors and two-wire products, alongside Pyronix smart video doorbells and related accessories.
Rather than selecting a product solely on price or appearance, installers can begin with the requirements of the entrance and then choose the appropriate technology.
Where visitor monitoring, motion notifications and mobile communication are the main priorities, a smart video doorbell may be sufficient.
Where the installation requires dedicated indoor stations, electronic lock control or a more extensive door entry arrangement, a video intercom system may be the better fit.
Both technologies have a role in modern security installations. The right choice depends on the specific functions, infrastructure and compatibility requirements of the project.
Explore G-TEC's Hikvision video and audio entry equipment and Pyronix doorbell range, or contact the G-TEC team for assistance selecting suitable equipment for your next installation.
Frequently Asked Questions
What is the main difference between a video intercom and a video doorbell?
A video doorbell is mainly used for visitor monitoring, doorbell calls and motion alerts, usually through a mobile app. A video intercom system is built around connected components such as a door station,
indoor station and compatible locks, making it better suited to visitor communication combined with door entry management.
Can a video doorbell unlock a door?
It depends on the product and any supported integration. Installers should not assume that every video doorbell can operate an electric lock or form part of a door access-control system.
Do video intercom systems support mobile app access?
Yes. Mobile control is not exclusive to video doorbells. G-TEC's Hikvision intercom range includes models supporting the Hik-Connect app, alongside dedicated indoor stations.
Can video doorbells and video intercoms record footage locally?
Yes, both can. The Pyronix DoorbellCam2 supports local SD card recording, while selected Hikvision intercom kits, such as the DS-KIS604-P(C), store messages and captured images on a TF card.
What installation options are available?
The Pyronix DoorbellCam2 is a Wi-Fi video doorbell with a rechargeable battery and USB-C charging. Hikvision's video intercom range includes IP equipment using Power over Ethernet (PoE), as well as two-wire intercom products.
Which should I choose for my project?
Where visitor monitoring, motion notifications and mobile communication are the main priorities, a smart video doorbell may be sufficient. Where the installation requires dedicated indoor stations, electronic lock control or a more extensive door entry arrangement, a video intercom system may be the better fit.