Hotel PBX Replacement Checklist

Replacing a hotel PBX goes smoothly when you inventory what you have, set requirements for 911, guest rooms and the PMS before you talk to vendors, and test every device type before cutover. This checklist covers each stage, from the phone bill audit to the first week after go-live.

When it's time to replace your PBX

Most hotels replace their PBX for one of a few reasons: the hardware is out of support, the maintenance contract keeps rising, the carrier is retiring the copper or PRI lines it depends on, or a renovation or rebrand forces the decision. In March 2026 the FCC adopted an order that makes it easier for carriers to retire copper and discontinue legacy services, so many properties will face that trigger sooner rather than later.

A replacement also puts you under the current federal 911 rules for multi-line telephone systems. That's a good reason to treat the project as more than a hardware swap.

Step 1: Inventory what you have

You can't compare quotes until you know what you're replacing. Gather:

• Your last three months of phone bills, including lines, trunks, usage and maintenance.
• The PBX make, age, support status and contract end date.
• A count of guest room extensions, front desk, back-office and department phones, and lobby or courtesy phones.
• The type of trunks you use (copper lines, PRI or SIP) and how many.
• Every phone number you need to keep, including main lines, fax and direct numbers.
• Current call flows: auto attendant menus, hunt groups, after-hours routing and voicemail boxes.
• Integrations: PMS link, call accounting, wake-up calls and voicemail-to-email.
• Anything else on the lines: elevator phones, fire panels, alarm dialers or fax machines.

That last item is easy to miss. Life-safety lines often need their own plan, so flag them early with your vendor and your fire or elevator contractor.

Step 2: Set your requirements

Write these down before the first vendor call. They will keep demos focused on what matters to your property.

• 911 compliance. Direct 911 dialing with no prefix, on-site notification to the front desk or security, and dispatchable location down to the room or floor for every device, including tablets and softphones.
• Guest room experience. Will guests use handsets, in-room tablets, their own mobiles, or a mix? Do accessible rooms need specific phones?
• Staff mobility. Which staff need to take calls away from a desk?
• PMS integration. Check-in and check-out, guest name display and room status.
• Resilience. What happens to calls when the internet goes down?
• Number porting. Keeping every existing number, with no gap in service.
• Support. Hours, response times and who you call at night.

Step 3: Compare options and quotes

Your main choices are a new on-premise PBX, a cloud PBX, or a hybrid that keeps some existing handsets and wiring on a cloud system. Compare quotes on the same basis: a five-year total including hardware, installation, monthly fees, trunks, maintenance and handset replacement, divided by your room count. Ask what is included and what is extra, especially 911 location services and PMS integration.

Ask every vendor for a live demo of a test 911 call from each device type, and of a guest calling the front desk, so you can see exactly what staff see.

Step 4: Plan the cutover

• Confirm the number porting date with the carrier and keep the old lines active until the port completes.
• Rebuild call flows, hunt groups and voicemail on the new system before go-live.
• Load and verify the 911 location for every extension and device: building, floor and room.
• Set who receives 911 notifications and how (desk display, SMS, email or voice), with overnight coverage.
• Pick a low-occupancy window for the switch and have the vendor on site or on call.
• Train front desk, PBX operators and managers on the new phones and on what a 911 alert looks like.
• Update the in-room dialing instructions and any printed guides.

Step 5: Test before and after go-live

• Place a test 911 call from each device type, coordinated in advance with your local 911 center, and confirm the location and staff alert.
• Call every department from a sample of guest rooms and check that staff see the right room number.
• Test outside calls in and out, including caller ID on outbound calls.
• Test wake-up calls, voicemail and PMS check-in and check-out.
• Simulate an internet outage and confirm what still works.
• Review issues with the vendor after the first week and again after the first month.

Common mistakes to avoid

The most common problems are predictable: forgetting elevator and alarm lines, letting the old contract auto-renew during the project, porting numbers before the new system is ready, and treating 911 as a final checkbox instead of a requirement. Another is replacing like for like. A PBX project is the cheapest moment to rethink the room phone itself, since a cloud hotel PBX can also put the room phone on in-room tablets or guests' own mobiles, which reduces the number of handsets you have to buy and maintain.

PBX replacement questions

Sources

Regulatory details are from the FCC. This checklist is general guidance, not legal advice.

• FCC: Multi-line Telephone Systems – Kari's Law and RAY BAUM'S Act 911 requirements
• eCFR: 47 CFR Part 9, Subpart F (Multi-line Telephone Systems)
• FCC: Dispatchable Location for 911 Calls
• FCC: Report and Order FCC 26-19, Accelerating Network Modernization (Mar. 2026)