Sending your apartment intercom to your cell phone means pointing the door panel at a phone number you actually answer, instead of an in-unit handset. When a visitor presses your name, the panel places a real phone call. You pick up, talk, and press the unlock digit. This has nothing to do with Intercom the customer messaging software. We are talking about the box at your building's front door.
What does "intercom to cell phone" actually mean?
Most apartment intercoms made in the last thirty years are, under the hood, a telephone dialer bolted to a door strike. The panel stores a directory. Each name maps to a phone number. Press the name, the panel dials the number over a phone line or a cellular module, and waits for someone to answer.
That number does not have to be a landline in your kitchen. It can be your mobile. It can be a virtual number that routes somewhere smarter. The panel does not know or care. It only needs a call to connect and a tone to come back down the line.
So "intercom to cell phone" is not a product category so much as a configuration. The hard part is rarely the technology. It is getting the right number into the building directory and keeping it there. Our apartment buzzer guide walks through the panel types and what each one can do.
Why do so many people want this now?
Because almost nobody has a home phone anymore. According to the CDC's National Center for Health Statistics, in the second half of 2024, 78.7% of American adults lived in wireless-only households, meaning no landline at all (National Health Interview Survey, Wireless Substitution early release, 2025).
Meanwhile, buildings kept installing panels that assume a landline is sitting in the suite. The result is the thing every renter has lived through: a courier buzzes, nothing rings anywhere, the driver waits ninety seconds, and the package goes back on the truck with a "customer not available" note.
Forwarding the intercom to your cell closes that gap. You hear the call wherever you are. You can let the plumber in while you are at work.
How do you set it up?
- Check what the panel doesStand at the door and press a neighbour's name, or your own, and listen. If you hear a dial tone, ringing, or a connecting click, the panel dials out to a phone number. That is the kind of system this works with. If pressing a name only rings a wired handset inside the unit with no phone line involved, it is a hardwired intercom and forwarding is not possible without the building replacing hardware.
- Find out who controls the directoryThis is your property manager, superintendent, condo board, or in some buildings the intercom vendor. Residents almost never have access to the panel's programming themselves.
- Decide what number goes inYou can give them your mobile directly. That works, and it is free. Or you can use a dedicated number that adds automation on top, which is what Enterkey provides.
- Send the request in writingEmail beats a hallway conversation, because the person programming the panel may not be the person you spoke to. Include your unit number, the name as it should appear in the directory, and the number.
- Test it before you need itWalk downstairs, press your own name, and confirm your phone rings. Then confirm the unlock digit works. On most panels it is 9, 6, or 0, but it varies, so ask which digit the system uses.
Most managers handle this in a day. If yours needs a nudge, our page on asking your property manager has more on the wording.
What should you email your property manager?
Copy this, fill in the brackets, and send it:
Hi [name], I'd like to update the buzzer directory entry for unit [number]. Could you please change the phone number for [last name, unit number] to [new number]? The entry name can stay the same. Could you also confirm which digit I press on a call to release the front door? Thanks very much, [your name], unit [number].
What are the limits of plain forwarding?
Pointing the panel at your mobile solves one problem, hearing the buzz. It leaves several others standing:
- You still have to answerIn a meeting, on the subway, phone on silent, asleep: the call rings out and the visitor leaves. Forwarding moves the failure point, it does not remove it.
- Unknown numbers get screenedBuzzer calls arrive from a number you do not recognise. Plenty of phones send those straight to voicemail, and plenty of people decline them out of habit.
- Only one phone can be listedMost directories hold a single number per unit. If you have a roommate or a partner, one of you becomes the designated door answerer forever.
- No record of anythingYou cannot check later whether the dog walker actually came at 2pm, or whether anyone buzzed while you were out.
What does Enterkey add on top of forwarding?
Enterkey gives you a virtual phone number that your property manager puts in the directory in place of your mobile. No hardware, no rewiring, no visit from a technician. The panel keeps doing exactly what it always did. What changes is what answers. You can see the full flow on how it works.
- Timed keysTurn on a key for anywhere from five minutes to twelve hours, or Forever with a required PIN. While it is active, Enterkey answers the buzz and opens the door automatically. Nobody has to pick up a phone.
- PINs at the panelGive a cleaner or a courier a code they type or speak at the door. Each entry is logged.
- Recurring schedulesIf the same person comes every Thursday morning, set a weekly window and stop thinking about it.
- Shared household accessSend an invite link so your roommate or partner can open the door too, even though the directory holds one number.
- Call forwarding when no key is activeThe buzz rings your phone as normal, so you keep the manual option.
- Activity logA plain record of who got in and when.
What does it cost, and who is it not for?
Enterkey is $9.99 per month, or $69.99 per year, which works out to about $5.83 a month. New members get their first 14 days free and can cancel before the trial ends without paying anything. Details are on the pricing page.
Be honest with yourself about fit before you sign up. Enterkey is iOS only, so an Android household is out of luck for now. You need your property manager to update the directory number, which is usually quick but is genuinely out of your hands. And if your intercom is hardwired to an in-unit handset and never dials a phone number, no app can help, including this one. Support is real people at support@enterkey.app, usually replying within hours, and they will tell you straight if your building will not work.
If your intercom already rings your cell and you are tired of being the person who has to answer it, Enterkey is worth a try. New members get their first 14 days free.
