Every property has the same weak point: the front door. It is the one place where a stranger can stand, press a button, and wait for someone inside to decide whether to let them in. For years that decision was made blind, or through a peephole. A video intercom system changes that completely.

Intercoms have quietly become one of the most practical security upgrades available to Brisbane homes and businesses. They are no longer just a buzzer on a gate. Modern systems show you who is at the door in high definition, let you speak to them from your phone whether you are in the back garden or in another suburb, and unlock the door remotely when you are happy to let someone in.

If you are weighing up whether an intercom is worth it, here is what actually matters.

What a video intercom system does

A video intercom has two halves. Outside there is a door or gate station with a camera, microphone, speaker and call button. Inside there is a monitor, and increasingly a mobile app that mirrors it.

When a visitor presses the button, the indoor monitor and your phone both ring. You can see and speak to the person, then release the door strike or gate motor without walking to the entrance. Premium systems also record a snapshot or short clip of every call, including the ones you miss, so there is a log of who came to the door while you were out.

That last point is the difference between a convenience feature and a genuine security measure.

The main types available

Audio-only intercoms. The traditional option. Cheap, reliable, and still fine for internal room-to-room communication or simple gate entry where identification is not critical.

Wired video intercoms. The workhorse for houses and small commercial sites. A cable runs from the door station to the indoor monitor, which means no battery changes, no dropouts and consistent video quality.

IP and network intercoms. These run over your data network rather than dedicated intercom cabling. They integrate with other systems, support multiple monitors and phones, and scale well across larger sites. They rely on a properly installed network, which is where structured data cabling becomes part of the conversation.

Multi-tenant intercoms. Apartment blocks, unit complexes and office buildings need directory-based systems where a visitor scrolls to the right name or dials an apartment number. These are a specialist install and need to be planned around the building entry points and cabling paths.

App-based intercoms. Almost all modern systems now offer smartphone answering. Useful, but only as good as the internet connection behind it, which is worth checking before you commit.

Why Brisbane homes are installing them

For residential properties, the appeal usually starts with parcel deliveries and unexpected visitors, then quickly becomes about something broader.

You can answer the door without opening it. Children can see who is outside without being seen. Elderly residents do not have to walk to the gate. And if you are away, you can still respond as though you are home, which is one of the most effective deterrents there is, because an empty-looking house is far more attractive to an opportunist than one that answers.

An intercom also fills a gap that cameras alone do not. CCTV cameras for residential properties record what happened. An intercom lets you intervene while it is happening. Together they cover both sides of the problem, which is why the two are so often specified as one job.

Where an intercom really earns its place is as the visitor-facing layer of a wider setup that includes residential access control and a monitored alarm.

Why Brisbane businesses are installing them

Commercial sites have a different driver: control over who gets through the door, and a record of it.

Warehouses and trade premises use intercoms at the roller door and staff entry so deliveries and contractors can be verified before the gate opens. Medical, allied health and professional practices use them at after-hours entrances. Offices in shared buildings use them to manage reception load. Schools and childcare centres use them because unsupervised entry is not an option.

The practical benefit is that staff stop making judgement calls at the door. Verification becomes a process rather than a guess.

For most commercial sites, the intercom is the front end of a larger business access control system, with fobs, cards or PIN codes handling staff entry and the intercom handling everyone else. If you are still working out which system suits your site, our guide on how to choose the right access control system for your business walks through the decision.

It is also worth understanding how door access control systems work before you spec an intercom, because the two share the same locking hardware and power supply.

Is a video doorbell the same thing?

No, and this is where a lot of money gets wasted.

A consumer video doorbell is a camera with a chime. It typically depends on wifi, a battery or a low-voltage doorbell transformer, and a cloud subscription to keep your footage. It is designed for a single front door on a single house.

A video intercom is fixed infrastructure. It is hard-wired, it is powered properly, it can control an electric strike, mag lock or gate motor, it can serve multiple doors and multiple answering points, and it does not stop working when the wifi drops or the subscription lapses.

For a rented flat, a doorbell is fine. For a home you intend to stay in, a gated property, or any commercial premises, the intercom is the correct tool.

What to look for before you buy

• Camera quality and field of view. A narrow lens shows you a face and nothing else. A wide-angle lens shows you the person, what they are carrying and whether anyone is standing off to the side.
• Night performance. Most doorstep incidents happen after dark. Infrared or low-light performance is not optional.
• Weather rating. Brisbane summers deliver heat, humidity and driving rain. The door station needs an appropriate IP rating and, ideally, some shelter.
• Locking integration. Confirm the system can drive the lock or gate you actually have. Retrofitting the wrong strike later is an avoidable cost.
• Cabling and power. Wired systems need a route from door to monitor and a reliable power supply. This is the part homeowners underestimate most.
• Support and parts. Choose equipment that is properly supported in Australia so that a failed door station in three years is a repair, not a full replacement.

Why installation matters more than the brand

The most common intercom faults we see are not manufacturing defects. There are installation problems: door stations mounted at the wrong height so visitors are filmed at chest level, units mounted in full western sun, cable runs pushed beyond their rated length, and locking hardware that draws more current than the supply can deliver.

A professionally installed system is planned around your entry points, your existing security equipment and the way people actually move through the property. It is terminated properly, tested under load and handed over working.

Protec supplies, installs and services intercom systems across Brisbane, Logan, Ipswich, Moreton Bay, Redland Bay, the Gold Coast and the Sunshine Coast. Note that we install and support systems we supply, so we are not able to take on installs of customer-supplied or DIY equipment.

Frequently asked questions

Can a video intercom work with my existing gate? In most cases, yes. An electric gate with a control board can usually be triggered by the intercom. If you have a manual gate, we generally require an electronic strike or magnetic style lock, which our locksmith’s can arrange for you at the time of installation. 

Can I answer the intercom from my phone? Yes, on app-enabled systems. Your monitor and your phone both ring, and you can talk and unlock from either.

Do intercoms record? Many systems capture images or clips of each call, including missed calls. Recording length and storage vary by model.

Can one intercom cover more than one door or gate? Yes. Multi-door systems are standard and are usually cheaper to install together than to add one at a time.

Will it still work in a blackout? Wired systems can be backed up so entry is not lost during an outage. This should be specified at install.

How does an intercom fit with my alarm and cameras? It sits alongside them. Your security alarm system handles intrusion, your CCTV handles recording, and your intercom handles who gets in.

Talk to Protec about your entry points

If you are unsure whether you need an intercom, an access control system, or both, the fastest way forward is a look at your site.

Learn more about our intercom systems, or contact the Protec team for advice tailored to your property.