Intercoms near you

A traditional wired intercom runs dedicated cable from the door station to the inside stations and depends on nothing else. It has no account, no subscription and no app, it works during an internet outage, and it keeps working after the manufacturer loses interest in the product. Its limits are equally clear: it rings only inside the building, cable has to reach every station, and adding a station later means adding cable.

An IP intercom rides on the building's network and can ring a phone anywhere, which is genuinely useful for a household that is often out, for a gate at the end of a driveway, or for a landlord managing several units. The trade is dependence: on the network, on the manufacturer's service, on notifications actually arriving, and on the account staying alive. Ask what the system does when the internet is down, and whether the door release still works from an inside station when it is.

Telephone-entry systems occupy the middle. They dial out to a number rather than to a fixed station, which made them the standard at gates and lobbies for decades. What has changed is the line underneath. A system installed to dial an old copper landline may now be dialing an internet voice service, which introduces the outage behavior that FCC backup power rules are written around, and which is why that provider's backup power option matters to a gate nobody thinks of as a telephone.

This is the question to ask first and the one most installers are not asked. An intercom that depends on the house network, a cloud service and a phone has three separate things that can fail, and they tend to fail together during exactly the weather that brings people to your door.

The voice half has a federal backdrop worth knowing. FCC rules require a provider of fixed residential interconnected voice over internet protocol service to offer subscribers the option to purchase backup power at the point of sale, including at least one option with a minimum of eight hours of standby backup power and at least one option with a minimum of twenty-four hours. The same rules require annual disclosure to subscribers of whether the service can accept backup power, the service limitations with and without it, purchase and replacement information, expected duration, proper usage and storage including the effect on duration, self-testing instructions and warranty terms, delivered in a way reasonably calculated to reach individual subscribers rather than only posted on a website.

Translate that into a specification for your own building. Ask how long the door station, the inside stations and the door release run on backup; ask whether the door can still be released from inside without power; ask whether a visitor can reach a resident when the internet is down; and, in a multi-unit building, ask what the arrangement is for emergency access when the system is dead. Write the answers into the proposal.

A door station that stores the conversation, rather than merely carrying it, is doing something several state statutes address directly, and the statutes are about conversations rather than about doorbells. Federal law permits interception by a person not acting under color of law who is a party to the communication or with one party's prior consent, and that is the floor.

A number of states require more. Illinois makes it eavesdropping to use a device in a surreptitious manner to record a private conversation, whether or not you are a party, without the consent of all the parties, and defines a private conversation as an oral communication where one or more of the parties intended it to be private under circumstances reasonably justifying that expectation. Maryland treats interception by a private party as lawful only where all parties gave prior consent. Pennsylvania's exception applies where all parties have given prior consent. Oregon makes it an offense to obtain a conversation by device if not all participants are specifically informed. Montana prohibits recording a conversation by hidden device without the knowledge of all parties.

Two practical distinctions follow. Live two-way audio that nobody stores is a different thing from stored audio, so find out which your system does by default and whether it can be changed. And a conversation at a shared entrance in a multi-unit building is not the same situation as one at a single-family front door, because residents talking to each other in a lobby have not consented to anything. Where recording is wanted, post clear notice, tell residents and staff, and check your own state's rule before enabling it rather than afterwards.

Adding an electric strike or a magnetic lock to a door makes it a code component, and the governing principle is the same one that constrains any access control: the residential code as adopted in Seattle, following the model text, requires egress doors to be readily openable from inside the dwelling without the use of a key or special knowledge or effort, with not less than one egress door per dwelling unit, a clear width of not less than 32 inches and a clear height of not less than 78 inches.

In practice that means the inside lever or panic hardware must retract the latch mechanically, independently of power and of the intercom, on any door serving as a required exit. A magnetic lock on such a door needs a release arrangement that satisfies the authority having jurisdiction, and it is a conversation to have with the building department before the hardware is ordered. Commercial-style hardware on a residential exit is a common way to fail an inspection and a dangerous way to fail a fire.

Take Seattle's text as an illustration rather than as your own requirement: states adopt different editions of the model codes and amend them. In a multi-unit building the applicable requirements are different again and generally stricter. Ask the building department which code and which amendments apply at your address, and ask specifically about electrified hardware on an exit door.

Contractors sometimes describe residential entry work as an ADA requirement, and for a private home that is simply wrong. Title III of the Americans with Disabilities Act covers businesses and nonprofits that serve the public, and the Department of Justice's list of covered entities is a list of businesses: restaurants, hotels and motels, shops, movie theaters, private schools, doctors' offices and private hospitals, day care centers and gyms. A private residence is not among them.

For housing, the statute that matters is the Fair Housing Act, which prohibits discrimination by direct providers of housing such as landlords and real estate companies as well as other entities including municipalities and lenders. Its design and construction requirements apply to new multifamily dwellings of four or more units intended for first occupancy after March 13, 1991, and include an accessible entrance on an accessible route, doors sufficiently wide to accommodate wheelchairs, accessible routes into and through each dwelling, and light switches, electrical outlets and thermostats in accessible locations.

For an intercom that is a design instruction rather than a legal lecture. Mount the door station and the inside station at heights people can reach and read, make sure a resident who cannot hear a tone has a visual indication that the door has been released, and make sure the entry does not depend on a smartphone for people who do not use one. In a covered multifamily building, take advice on how those requirements apply before specifying anything.

Intercom work sits in low-voltage territory, and the credential depends on the state and on what else is in the scope. Washington regulates it as an electrical specialty: the 06 limited energy system certificate covers signaling and power-limited circuits and related equipment, expressly including telecommunications, intrusion alarms, fire protection signaling, lighting control and energy management systems.

If the same job includes intrusion detection or a connection to an alarm, a security credential usually applies. New York licenses the individual security or fire alarm installer, defined as a person who holds themselves out as able, or offers or undertakes, to install, service or maintain a security or fire alarm system to detect intrusion, break-in, movement, sound or fire, on a two-year license, with an exemption where an owner installs the system on their own property. California licenses the alarm company operator through the Bureau of Security and Investigative Services and registers the alarm agents it employs, with background checks through the state Department of Justice and the FBI. Tennessee licenses alarm systems contractors and registers qualifying agents and employees.

Electrified door hardware may bring the electrical trade in as well, and in a multi-unit building the fire alarm interface, if there is one, is a specialist matter with its own inspection. Ask which parts of the proposal need which credential, get the numbers, and check them with the agency that issued them.

LokalMatch gets the request in front of the right people and stops there. You describe the entry once, saying whether it is a house, a duplex or a small building, how many units and inside stations, whether you want video, and your ZIP code, and intercom and low-voltage installers covering that area receive it. Interested ones contact you. Pros pay for the requests; homeowners and small landlords post free. LokalMatch does not install intercoms, does not set or negotiate prices and does not vet, rank or recommend any company, so credentials, insurance and your building department's requirements remain yours to confirm. Nothing here is legal advice.