Most AI receptionist comparisons come down to a checklist of features that all look roughly the same on paper — every product "answers questions," every product "books appointments." The differences that actually matter show up somewhere else: in how it behaves on a real call, what it's actually connected to, and what happens the moment something doesn't go as planned.
These are the ten questions we'd tell a business owner to ask — including of us.
1. Does it actually book the appointment, or just take a message? A lot of tools stop at "capture the request and someone will follow up." That's a lead form with extra steps, and it leaves the actual conversion sitting in someone's inbox instead of on your calendar. Ask to see it complete an actual booking, live, in the demo — pick a real date and watch it check availability and confirm, not just describe how it would.
2. Is it connected to your real calendar, or working off assumed availability? This is the difference between "we're usually open Thursdays" and "Thursday at 2 PM is free, right now, want it?" Ask specifically what systems it can connect to — Google Calendar, Outlook, Cal.com, Calendly, or whatever you actually run on — and whether availability is checked live, at the moment of the question, or against a static list someone typed in once and never updated.
3. How fast does it respond on an actual phone call? Latency is invisible until it isn't. Anything much above 300–400ms starts to feel like a delayed phone line, with both sides accidentally talking over each other. AIVA runs at roughly 198ms average response time — ask any vendor for their real number, not a marketing adjective like "fast." We've broken down why this specific number matters so much.
4. What languages does it actually handle — natively, not translated? There's a real difference between a system that understands Hindi or Gujarati directly and one that translates to English internally and back. Ask for a live demo in the specific language your customers use, not a features-page checkbox. We've written honestly about where this genuinely gets hard.
5. What happens when it can't answer something? Every system hits its limit eventually. What matters is what happens next — does it hand off to a person with the conversation so far intact, or does the customer get stuck, or dropped to voicemail? Ask to see an actual handoff, not just hear it described, and ask specifically what the person receiving it sees. The fuller version of this question is worth reading before you buy anything in this category.
6. Does the pricing match your actual call volume? A lot of pricing is built around enterprise volume and scaled down badly for a business getting a couple hundred calls a month. Pay-as-you-go pricing — where you pay for what you use rather than a flat monthly commitment — tends to fit small business volume better than tiered subscriptions built for someone else's scale. See a full worked example of what this looks like in rupees.
7. Do you need a developer to set it up, or change it later? If adding a new service, adjusting hours, or updating a price requires an engineer or a support ticket, you'll dread every small change. Setup and ongoing edits should be something a non-technical person on your team can do, the same afternoon a price changes or a new service launches.
8. Can you actually see what it's doing? Ask for access to real transcripts and a live dashboard, not just a summary report at month's end. You should be able to see exactly how a specific call or chat went, any time, including the ones that didn't go perfectly.
9. Does it work across the channels your customers actually use? Phone, web chat, and SMS all get used differently and by different people. A tool that only does one usually leaves a gap exactly where you can't see it — the customer who would've texted instead just doesn't reach you at all.
If a vendor can't answer these ten questions specifically — with a live demo, not a slide — that's itself an answer.
10. What does it cost you to find out it's wrong? Free trials with no card required and no lock-in tell you a lot about how confident a vendor actually is in their product. If a company needs a signed annual contract before you can test it on a real call, ask why.
Questions worth answering about your own business first
A vendor can only be evaluated fairly if you know what you're actually asking it to do. Before any demo, it's worth writing down: roughly how many calls, chats, and texts your business gets in a normal week, and how that shifts on your busiest days. Which languages your customers actually use — not just what your team defaults to, but what callers actually speak on the phone. Whether appointments matter to your business at all, or whether it's mostly Q&A with no booking component. And whether you have access to the calendar or booking system you'd want connected, since that access is usually the one thing that can't be arranged on the spot mid-demo. Walking in with these answers turns a generic sales conversation into a specific test of whether a given product actually fits your business.
A worked example: running the same test on two vendors
Here's what this looks like concretely. Say you're comparing two vendors for a busy salon. You call both, at the same time of day, and ask the same thing: "Do you have anything open this Saturday afternoon for a colour and cut?"
Vendor A's system pauses, then offers a slot — but when you ask how it knows that's open, the answer is vague, and a follow-up call ten minutes later gets offered the exact same slot, which means at least one of those two callers is about to be double-booked. Vendor B checks, names the actual stylist and time, and when you call back immediately afterward to test it, that specific slot is now gone from what's offered, because the first booking was actually written to the calendar in real time.
That one test — call twice, back to back, ask for the same slot — tells you more about whether a system is checking a live calendar than any answer a salesperson gives you about "real-time integration." It costs you two phone calls and about four minutes, and it's worth running before you sign anything, on every vendor you're seriously considering, including us.
Red flags worth taking seriously
A handful of patterns tend to predict a bad fit, regardless of how polished the sales pitch is. Vague pricing that only resolves to a real number after a sales call. A demo that's clearly scripted rather than able to handle a question you make up on the spot. Reluctance to show a real handoff, or vague language about what happens when it "doesn't know" something. No mention of data handling or where conversations are processed, even when asked directly — worth reading what's reasonable to ask any vendor about privacy. None of these alone is disqualifying, but two or three together are worth taking as a real signal, not a coincidence.
"Coming soon" is not a feature
A specific pattern worth watching for: a demo that answers a hard question with "that's on our roadmap" or "we're launching that next quarter." Roadmap items are fine to ask about, and an honest vendor should tell you what's coming. But a roadmap item isn't a reason to sign a contract today, and it's worth mentally re-scoring any comparison chart that includes "coming soon" features as though they were live ones.
The test is simple: does the feature work, right now, in front of you, on a call you make up on the spot? If a vendor's answer to a hard question is a future tense — "will be able to," "is planned for" — treat that feature as not existing yet for the purposes of your decision, however confidently it's described. You can always revisit a vendor once a promised feature actually ships. You can't easily undo a decision made on the strength of a promise that turned out to take another eight months.
Resolution rate versus answer rate — a distinction worth knowing before you ask
Two numbers get used almost interchangeably in sales conversations, and they measure very different things. "Answer rate" is simply whether a call gets picked up at all — trivial for almost any system to make look good, since picking up isn't the hard part. "Resolution rate" is whether the call actually got handled without a human having to step in — the harder, more honest number, and the one that tells you whether the system is doing real work or just answering and then quietly punting most of what it hears.
When a vendor quotes you a headline percentage, ask specifically which of the two it is, and ask for the resolution number by itself if they led with answer rate. It's also worth asking how resolution is measured — resolved as in "the customer got what they needed," or resolved as in "the call ended without an explicit handoff," which aren't quite the same thing. A vendor confident in their actual resolution rate will have this number ready and specific; a vague answer, or a number that shifts depending on how the question is phrased, is itself useful information.
How to actually run the evaluation
Treat it like testing a new hire, not reading a spec sheet. Call the number yourself and ask a real question from your business — not "what can you do," but the actual thing your fortieth caller this week will ask. Try to book something, then try to reschedule it. If your customers speak a language other than English, run the same test in that language. Ask what happens if you say "I want to speak to a person" partway through, and watch what happens next. A vendor that can survive that kind of test, live, on a real call, has told you more than any comparison chart will.
It's also worth running this same test more than once, on different days and at different times, rather than a single call and a snap judgment. A system that sounds sharp on a quiet Tuesday morning should sound just as sharp during a Saturday rush — that consistency, more than any single impressive answer, is what you're actually buying.
What a real trial week looks like
If a vendor offers a genuine trial, it's worth using it deliberately rather than just letting it run in the background. A useful week looks something like this: day one, connect the number or widget and load in your actual FAQs and calendar — resist the urge to configure it lightly just to get it live faster, since a thin setup will make any vendor look worse than it is. Days two and three, route a real slice of your call or chat volume through it — after-hours calls are the lowest-risk starting point for most businesses — and check a handful of the actual transcripts each day rather than waiting until the end of the week.
By day four or five, you should have seen at least one handoff to a human, and it's worth specifically checking whether that handoff felt clean — did the person picking it up have the conversation's context, or did the customer have to start over. By the end of the week, you're not looking for a perfect record; you're looking for a pattern: did the mistakes, if any, cluster around something fixable (a missing FAQ, an under-described service) or something structural (it couldn't check your calendar properly, it doesn't handle your customers' language). The first kind is a setup problem. The second kind is a real answer about fit.
None of these questions are about which product is objectively "best" — there isn't one. They're about fit: your channels, your languages, your call volume, your calendar. Answer them honestly for whatever you're evaluating, AIVA included, and the right choice tends to be obvious. You can try AIVA free and run through this list yourself, live, before deciding anything, or see the full pricing model first.