How to Connect Your Hotel PMS to Guest Wi-Fi (and What to Ask a Vendor)
Connecting a hotel's property management system to guest Wi-Fi means the WiFi learns who is staying, in which room, and until when, so a guest logs in with their room number and surname and loses access at checkout. Here is how those integrations work, what to ask before you buy one, and where Wyfy Guest stands.
Connecting a hotel’s property management system (PMS) to guest Wi-Fi means the WiFi stops treating every phone as a stranger. The PMS already knows who is staying, in which room and until when; an integration passes that to the WiFi’s login server, so a guest logs in with their room number and surname, and their access ends at checkout without anyone at the front desk doing anything.
Before going further, where we stand: Wyfy Guest does not connect to hotel PMS software today. There is no PMS connector in the product, so nothing below is a feature you can switch on with us. This guide explains how these integrations work in general, what to ask whichever vendor you talk to, and, at the end, what hotels running Wyfy Guest use instead.
How a PMS and guest Wi-Fi talk to each other
Every PMS-to-WiFi integration, whatever the brand on either side, does the same three jobs:
- Check-in creates access. When the front desk checks a guest in, the PMS sends an event that says, in effect, “room 214, surname Sharma, staying until the 12th”. The WiFi platform turns that into a login that will accept those details.
- Room moves and changes update it. If the guest moves rooms, extends the stay or the booking name is corrected, a change event follows, so the login keeps matching what the front desk sees.
- Checkout removes it. The checkout event ends the access, so a former guest’s phone is not still online from the lobby an hour later.
The guest-facing side is the login page. Instead of, or alongside, a phone number, it asks for a room number and surname, sometimes with the checkout date or a booking reference added to make guessing harder. The login server checks those against what the PMS sent and lets the device online for the length of the stay.
Some integrations add a fourth job, posting charges to the room: a guest who buys a faster tier pays by having the charge appear on their room bill instead of paying at the login page.
The three ways the connection is usually built
The PMS vendor’s own interface. Large on-premises systems have long had a dedicated interface protocol for third-party systems such as call accounting, door locks and WiFi. Oracle’s OPERA is the best-known example: its interface specification (often called FIAS, from the older Fidelio name) carries guest-in, guest-out and guest-change messages, and room postings, between the PMS and an interface server. These interfaces are typically licensed per property by the PMS vendor, so ask what it costs before you assume it is free.
A cloud API. Cloud PMSs, the kind most new and mid-size hotels in India run, usually publish a web API or a marketplace of certified integrations. The WiFi platform either polls for arrivals and departures or receives notifications when they happen. Whether a WiFi integration already exists for your PMS, and whether it costs extra on your plan, varies by vendor, so check their integrations list or ask their support team directly.
Middleware. Some hotels, and some WiFi vendors, put an integration hub between the two systems. The PMS talks to the hub once, and the hub talks to WiFi, door locks and everything else. It means one more system to keep running, but it can be the only practical route for an older PMS.
What to ask a vendor before you buy
“Do you integrate with PMS software?” gets a yes from almost everyone. These questions get a useful answer:
- Which PMS, which version, and is it live today? Ask for a property already running your exact system, not a list of logos. An integration “on the roadmap” is not an integration.
- Which interface does it use, and who pays for it? The PMS vendor’s interface licence, a paid API tier or a middleware subscription can each add a recurring cost that does not appear on the WiFi quote.
- What happens when the link goes down? If the PMS or the interface is offline, can guests still log in some other way, or does the WiFi stop accepting new arrivals?
- How does it handle the awkward cases? Two guests sharing a room, a surname typed differently at the desk, a booking made under a company name, an early checkout, a walk-in with no booking yet.
- How many devices per room, and for how long? A family of four with eight devices and a business traveller with one need different limits.
- Does it post charges to the room, and is that tested on your PMS? Room posting is a separate piece of the interface and is not always included.
- What guest data does the WiFi side keep, and for how long? It now holds names and room numbers, not just devices, which matters under India’s rules on identifying WiFi users and for privacy.
One India-specific note. A room number and surname identify a booking, not a mobile number. Properties that want each session tied to a verified phone number often keep an OTP (one-time password) step even with a PMS link in place, which is worth raising with any vendor and with your own legal advisor.
Where it fits, and where it doesn’t
A PMS link is a hotel-shaped feature. A hotel has bookings with start and end dates, rooms and a front desk, which is exactly what a PMS models and what WiFi access can follow. A cafe or a co-working space has walk-ins instead, which is a large part of why the right guest WiFi setup differs so much between a hotel and a cafe.
It also does less than it is sometimes sold as. It does not turn the WiFi into a booking engine, it does not decide what your own staff can see inside the WiFi dashboard, and it does nothing for a guest whose real problem is a dead internet line upstream. What it removes is manual work at the desk and the gap between who is staying and who is online.
What Wyfy Guest does today instead
To repeat it plainly: there is no PMS connector in Wyfy Guest today, and it cannot read your bookings or follow check-in and checkout. What hotels running it use instead covers most of the same ground, with the front desk doing one small step:
- OTP login. Guests sign in with a one-time password sent to their own phone by SMS or WhatsApp, so every session is tied to a verified number and there is no shared password to hand out. See WhatsApp vs SMS OTP.
- Vouchers per room. The front desk hands a voucher code over with the room key. Its validity starts counting down when the guest first uses it, not when it was printed, so a code issued at check-in lasts the length you chose.
- An Only Allowed list, for properties that want the WiFi limited to staying guests. Switched on for one property, the login page refuses any phone number not on the list, and each entry can carry an end date such as the checkout day. Entries are added in the dashboard; it is the manual cousin of a PMS check-in sync.
- Session length per property, so a login lasts as long as makes sense for that hotel rather than a fixed default.
If a PMS link is what decides it for your property, tell us which PMS you run when you book a demo. We would rather know which systems hotels actually use than guess, and we will not tell you it exists before it does.