Doortone is a hosted SIP intercom platform. We run the cloud, the encryption, and the operations — any door station, indoor monitor, or IP phone that speaks standard SIP can join.
Doortone splits the intercom into two layers: the cloud platform is our responsibility, and the device layer is open. No rip-and-replace, no vendor lock-in.
SIP signaling and call routing, encryption, a multi-tenant admin console, and continuous updates — fully hosted and operated by our team. No servers for you to build or babysit.
Door stations, indoor monitors, and IP phones that speak SIP 2.0 register and just work. Keep the gear you have, or pick from hardware we've tested and certified.
When a visitor rings, indoor monitors, mobile phones, and designated desk phones ring together. See who's there, then unlock the door with one tap.
The weakest part of most intercoms isn't the hardware — it's the system behind it. Doortone gets the system layer right.
No brand lock-in. Standard SIP 2.0 devices plug in and work, existing phones and PBX investments carry over, and you can phase hardware in building by building.
SIP over TLS for signaling, SRTP for audio and video. Visitor footage and conversations never cross any hop in plaintext.
The admin console signs in with FIDO passkeys — eliminating the default-password problem that gets most intercom and camera systems breached.
Multi-tenant from the ground up: manage every building, office, and plant from one console, with resident directories and auditable call and unlock logs.
ONVIF Profile S and RTSP support means door-station video feeds straight into your existing NVR. No parallel surveillance stack required.
Designed, built, and operated in Taiwan with a transparent, auditable supply chain — fit for NDAA-sensitive sites and public-sector procurement.
One platform, whatever the front door looks like.
Replace aging intercoms without rewiring the whole building — residents' phones become their indoor stations.
Tie visitor calls into access control and the phone system. Nobody at the front desk? Desk phones and mobiles still answer.
For sites under supply-chain security rules, every layer is auditable — no gray areas at acceptance testing.
Open APIs and a multi-tenant console let SIs manage many sites and turn intercom into recurring service revenue.
| Legacy closed intercom | Doortone | |
|---|---|---|
| Hardware choice | One brand, whole stack — a part shortage stalls the project | Open standard SIP; mix and match brands freely |
| Migration | Building-wide downtime and rewiring, all at once | Phase in unit by unit; reversible at every step |
| Transport security | Mostly plaintext; video can be intercepted | TLS signaling + SRTP media, encrypted throughout |
| Admin access | Default credentials, unchanged for years | FIDO passkey sign-in, no passwords to leak |
| CCTV integration | Intercom and surveillance run as separate silos | ONVIF / RTSP feeds into your existing NVR |
| Operations | Vendor discontinues, updates stop | Continuously updated platform with real support |
An account is one person who can answer the door and unlock it. Devices are never licensed — connect as many door stations as the site needs, switch phone brands whenever you like.
Published pricing is on its way; we'll size an estimate to your site and account count.
Each resident or staff member who needs to answer the doorbell and unlock remotely. Door stations and devices are free to connect.
Monthly billing. Every deployment starts with a proof-of-concept install, so you verify call quality and the unlock flow before going live.
Keep your existing SIP devices, source your own, or use certified hardware from us and our integration partners — all three work.
One building, a factory campus, or ten projects on your desk — write to us, and an actual engineer writes back.
sales@doortone.com