Audio versus video: why most Dubai homes end up on video
An audio-only door phone lets you talk to the person outside and release the lock, nothing more. It still suits a staff or service door where you know who is there.
For a front door or gate, video is the better answer. Delivery riders, drivers and contractors arrive unannounced, and a voice alone is not enough to decide whether to open up. The camera shows who is there, and many units log calls, including missed ones.
Video does add a camera that has to cope with Dubai light, covered below.
Wired systems: 2-wire, multi-wire and coax
Wired systems differ mainly in how many conductors the cable needs, which matters most when you reuse cable already in the wall.
- 2-wire video intercom system. In most designs, power, audio and video share one pair of conductors (twisted pair or, in some systems, coax), so a thin cable runs from the door station to the monitors. It is the easiest to install and the most forgiving in a retrofit, because a pair is often all you have. The trade-off is fewer features: it is built for answering a door, not for apps or large numbers of stations.
- Multi-wire (four, five or more conductors). Typically, separate conductors carry power, audio, video and the lock signal, though the exact arrangement varies by system. Older villas often have this. It is dependable, but extending it means pulling more cable.
- Coax. A coaxial cable carries the video signal. Audio and power usually travel on separate conductors alongside it, but how they are carried varies by system, so check the manufacturer's wiring details before reusing it. It turns up in older buildings and needs careful termination at both ends, or the picture goes noisy.
IP and wireless intercom systems: what you gain and what you take on
An IP intercom sends audio and video as data over a standard network cable, often with power on the same cable (PoE), so each station is a device on your network. That brings a phone app that rings wherever you are, several stations and monitors on one system, and links to cameras and access control.
It also makes the intercom part of the network, only as dependable as the switches, cabling and power behind it. Wherever possible, connect door stations by cable rather than Wi-Fi, and check the manufacturer's guidance on whether the system should share your main network or sit on its own, before first fix. For one door, IP can be more system than you need.
A wireless intercom replaces the cable with a radio or Wi-Fi link. It is attractive when the door station is far from the house and trenching would break finished paving. The compromise is reliability: links weaken through thick masonry and over distance, and battery-powered units need charging. Wireless suits a secondary entrance; for a villa's main gate or front door, we would rather get cable there.
Villa setups: one door, or gate plus front door plus indoor monitors
A villa intercom is one of two jobs. The simple one is a front door station and a monitor in the entrance hall or kitchen. The more common one is an intercom for gate and front door, with a gate station, a second station at the front door and indoor monitors in several places.
That second layout has to be designed, not bought as a kit. The gate station must talk to the gate controller, the door station to the lock, and every monitor should be able to answer either station, with the call stopping everywhere once someone picks up. If you are adding an intercom to a gate that already exists, our guide to automating an existing gate explains what the motor and controller need to accept a release signal, and the gate automation page covers the gate side.
Apartments and multi-unit buildings: the building owns the system
In a tower or managed building, the intercom that rings your flat is usually part of a shared system. The entrance panel, the riser cabling and the central equipment normally belong to the building, and often so does the monitor in each unit.
So the first step for an apartment intercom is a question to building management, not a purchase: what is fitted, who maintains it, and whether the in-unit monitor can be replaced or supplemented. Some buildings allow an add-on that forwards the call to a phone; some do not. Work touching shared cabling usually needs approval, and our guide to building approvals for apartments sets out how that conversation goes.
For a landlord or manager specifying an intercom system for apartment building projects, the questions differ: how many units and entrances, whether visitors call a unit or a concierge desk, and who maintains it.
Connecting the intercom to the gate, the door lock and a phone app
The useful part of an intercom is what happens once a call is answered, and there are three connections to plan.
For a gate, the door station offers a relay output (a dry contact) that the gate controller treats like any other open command. For a door, the same kind of output releases an electric lock. Some door station relays are too small to drive a lock or gate operator directly, so the lock or operator needs its own power supply, and the relay rating must be checked against the device it switches. The lock also needs a deliberate choice between fail-safe and fail-secure. Our smart door lock and access control page covers which locks suit an intercom release.
For a phone app, the intercom has to reach the internet, which in practice means an IP door station or a gateway that forwards the call. The app then rings your phone, shows the camera and can release the gate or door remotely. Think before enabling remote release on a front door: anyone holding your unlocked phone can then let people in.
Dubai conditions: sun, dust, glare and power cuts
Any intercom Dubai buyers choose has an outdoor station that lives somewhere harder than almost anything indoors. Direct sun heats a metal faceplate until it is uncomfortable to touch, ages plastics and throws glare across the camera. Choose shade, a canopy or a deep recess, facing away from the afternoon sun where possible. Dust and humidity matter too, so look for a sealed housing and a gasket around the faceplate, not just a rating on a spec sheet.
A lens facing low sun shows visitors as silhouettes for part of every day. Check the picture at different times of day, and use a wide dynamic range or backlight setting where the unit offers one.
Power matters just as much. A standard intercom runs on mains and stops in a cut, leaving the gate unanswerable and the door impossible to release remotely. Battery backup for the intercom, the lock supply and the gate controller is worth specifying, with a manual override on the gate and a mechanical key on the door.
Retrofitting, monitor placement and the mistakes we see
Monitor positions decide whether an intercom is used or ignored. The entrance hall, kitchen and main bedroom are the usual choices, plus a staff or driver room in a larger villa, at a height where the screen is readable.
A retrofit starts with a survey of what is already there. Old cable may be damaged or the wrong type, and existing conduit may be full, so a good installer tests it before promising to reuse it. Without spare conduit, runs go through the ceiling void or another route that can be made good. Keep intercom cable apart from mains over long parallel runs, and leave a service loop at the door station. In a villa automation project this is settled at survey. The mistakes below are almost all decisions made too late.
- Buying a kit before checking distance and cable. Maximum cable lengths vary by system, and a long villa driveway can exceed them.
- Putting the outdoor station in full sun, or at a height where the camera misses a tall visitor's face.
- Forgetting the lock and gate power supplies, so the intercom works and nothing opens.
- Mixing equipment families without confirming compatibility, so stations cannot call each other.
- Not asking who holds the administrator access, so nobody can add a monitor after handover.
What drives the cost, and a decision checklist
Prices depend on the property, so we do not quote them here. What moves the figure is the number of door stations and monitors, wired or IP, the length and difficulty of the cable runs, whether conduit can be reused, how many locks and gates are released, whether backup power is included and how much making good the walls and paving need. Our video intercom page lists the system types we install.
Work through this list before you contact anyone.
- How many doors or gates, and how far apart? Villa, apartment or managed building, and who owns any existing system?
- Audio or video, and should calls reach your phone when you are out?
- What cable already runs to the door: a pair, multi-core, coax or network cable?
- Which rooms need a monitor, and what must the intercom release: a gate, a door lock or both?
- Where will the outdoor station sit, and does it get direct sun or glare?
- What should still work in a power cut, and who holds the administrator access afterwards?
In short
The right intercom is the simplest one that still does what the property needs. In every case, results come down to the cable route, where the outdoor station sits in Dubai sun, and what happens in a power cut. If you would like a clear recommendation for your property, contact us to arrange a site survey, and we will look at the doors, the cable and the power before suggesting anything.
Common questions
Audio-only door phones and video intercoms, each wired or networked. Wired systems include 2-wire, multi-wire and coax. IP intercoms send audio and video over a network cable, often with power on the same cable, and support a phone app and several stations. Wireless suits secondary entrances. The right one depends on the number of doors, the distance between them and the cable already in the walls.
It is a video intercom where power, audio and video travel over a single pair of conductors, so a thin cable runs from the door station to the monitors. It is easy to install and suits retrofits where only a pair is available. It offers fewer options for apps, extra cameras and large numbers of stations than an IP system.
Audio is enough for a staff or service entrance where you know who is there. For a front door or gate, video is the better choice, because you see who is calling and what they carry before you release anything.
Yes. The door station provides a relay output that signals the gate controller or an electric lock to open. The gate needs a controller that accepts that signal, the lock or operator needs its own power supply, and the relay rating must be checked against the device.
A building-wide system is normally specified for the whole building and maintained by management, so ask building management what is installed and what they allow. For a landlord or manager, the scope depends on the number of units and entrances and whether calls go to residents or a concierge desk.
Not unless it has been designed to. A standard intercom runs on mains, so a cut leaves the door station silent and the gate or lock unable to release electronically. Battery backup for the intercom, lock supply and gate controller is worth specifying.
Usually, yes. Existing conduit can often take new cable, and some old cable can be reused after testing. A survey establishes what is possible before anything is quoted.