UniFi Talk can replace an aging house PBX or a scattered set of cell phones for a luxury home, but it works best as a planned extension of the enterprise network rather than a drop-in swap. Internal calling between Talk phones is free and does not need a subscription, while outbound calling with a real phone number runs through UniFi Talk service or a third-party SIP/PBX connection. The system still needs a UniFi Cloud Console (or CloudKey+ for Talk-only management), correctly provisioned handsets, and a plan for what happens to extensions if the internet connection drops. Getting that design right during the same network upgrade that handles Wi-Fi, cameras, and door access avoids a second disconnected system later.
What hardware does a house actually need?
UniFi Talk's current handset lineup is the G3 family: the G3 Touch Enterprise (7" display, wall or desktop), the G3 Touch Wall, and the G3 Touch Pro, each supporting Bluetooth, a wireless handset accessory, and app integration (UniFi Managed VoIP). For a house running a mix of kitchen, office, and primary-suite extensions, the practical question is less which phone looks nicest and more whether each location needs a full touchscreen unit or can share a number with a group of other phones — Ubiquiti's subscription-locked and subscription-unlocked phone types are built around exactly that distinction, letting an installer decide per-handset whether it needs its own direct number or just needs to ring as part of a shared line (UniFi Managed VoIP).
Legacy analog gear — a fax machine, an old cordless base station, or an existing wired extension a homeowner wants to keep — isn't addressed directly in UniFi's own Talk documentation, so this is a detail to confirm with your installer rather than assume: ask specifically how any analog devices in the house will bridge onto a SIP-based system, and get that answer in writing before old phone wiring is pulled out.
How does a gate or door call ring into the house?
UniFi's intercom hardware (the G3 Intercom and standard Intercom) handles two-way audio, video, and access at a door or gate, with crystal-clear two-way audio and PoE connection through a UniFi Access Hub (UniFi Intercoms). That's a separate product line from Talk phones, and the two serve different jobs: the intercom is built for visitor screening, directory search, and unlocking a door from an Access reader, while Talk phones are built for voice calls between rooms and to the outside world. If the goal is "unlock the gate from any room phone," confirm with your integrator whether that specific Talk-to-intercom workflow is supported in your configuration, since the fetched product pages describe each system's own capabilities rather than a documented handoff between them. For homes weighing a dedicated video intercom against a simpler door station, that's a separate design decision worth resolving before wiring is finalized — see our related piece on Crestron door station or UniFi Access at the gate.
What happens to numbers, porting, and offline extensions?
Existing phone numbers can generally be ported into UniFi Talk — in the US, UniFi Talk supports porting of nearly all numbers, with exceptions for toll-free numbers and a small number of geographic rate centers, and porting itself carries no additional fee under either published US plan (UniFi Managed VoIP). Outbound calling requires either a UniFi Talk service subscription or a third-party SIP/PBX provider brought in by the homeowner or installer; internal extension-to-extension calling works without any subscription at all, which matters if the main use case is really just an intercom-style system between rooms rather than outside calling.
Offline behavior depends on which phone type is deployed: subscription-locked phones require an internet connection to function, since each is tied to a unique assigned number, while subscription-unlocked phones sharing a group number do not require an internet connection to operate internally. That distinction should be part of the design conversation up front — a house that wants internal phones to keep working during an outage needs subscription-unlocked hardware specified from the start, not discovered after the fact.
What should be documented at handover?
Because UniFi Talk sits on the same Cloud Console or gateway that runs the rest of a home's enterprise network, handover documentation should spell out who administers Talk versus the broader network: which account holds the Talk subscription, which numbers are assigned to which extensions or groups, whether call recording storage is in use (which requires a hard disk drive on the console), and how voicemail and SIP credentials are backed up. A UniFi deployment that isn't documented this way is hard for a new installer or IT contractor to pick up later — a problem not unique to Talk, as outlined in our broader guide to a UniFi network handover checklist.
This kind of voice system belongs in the same planning conversation as the rest of a property's enterprise network — VLANs, PoE budgets, and gateway sizing all affect whether Talk phones, cameras, and Wi-Fi coexist cleanly. Cave Group designs and installs UniFi Enterprise networks as part of its networking upgrade service, and folds voice, access, and camera hardware into the same VLAN-segmented design rather than treating each system as a separate project.
Frequently asked questions
Does UniFi Talk charge for internal calls between house phones?
No. Internal extension calling between UniFi Talk phones is free and does not require a UniFi Talk subscription; only outbound calling to outside numbers needs a subscription or a third-party SIP/PBX connection.
Can I keep my existing phone number on UniFi Talk?
In most cases, yes. UniFi Talk supports porting nearly all US numbers free of charge, with exceptions for toll-free numbers and numbers tied to a small number of geographic rate centers.
Will house phones still work if the internet goes down?
It depends on the phone type. Subscription-locked phones require an internet connection because each is tied to a unique assigned number; subscription-unlocked phones sharing a group number can operate without one, so that choice should be made during design if offline operation matters.
Is a UniFi Talk phone the same thing as a door intercom?
No. UniFi's G3 Intercom and standard Intercom are separate hardware built for visitor screening, two-way door audio, and unlocking via UniFi Access, while Talk phones handle voice calling between rooms and outside lines. Confirm with your installer whether a specific door-to-phone ringing workflow is supported in your setup.
What hardware does a Talk deployment need beyond the phones?
UniFi recommends a compatible Cloud Console, such as a UniFi Cloud Gateway (Dream Machine Pro or Special Edition), for a local PBX setup, or a CloudKey+ if only Talk phone management is needed. A hard disk drive is required only if call recordings will be stored.