Will customers know they are talking to software?

Most will, and the ones who care will say so or hang up. That is worth knowing rather than hiding, because the callers most likely to hang up are often the ones ringing about bigger work. If you use one, say plainly at the start that they have reached an automated line and that a person will call back. Trying to pass it off as a receptionist is the version that generates complaints, and it also makes the hang-ups impossible to count.

Can it book jobs straight into my diary?

Technically yes, and it is usually a bad idea in the first few months. A diary filled by something that cannot see the van, the weather or how the job before it is running becomes a morning of phone calls undoing it. Have it capture the details and offer a time range rather than a slot, then confirm the booking yourself or through whoever runs the diary. Once a few hundred calls have gone through cleanly you can widen what it is allowed to do.

How much does an AI receptionist cost compared to an answering service?

Rates move constantly, so price both yourself rather than trusting a figure in an article. What matters more is what you compare them against. Work out what your missed new enquiries are worth over a year, and treat that as the ceiling. If either option costs more than the leak it plugs, the answer is neither, and the cheaper fixes higher up the list are where your money should go.

AI receptionist or answering service: what trades need

What are you actually choosing between?

Four things, described by what they do rather than by what the ads call them.

Voicemail. Records a message and does nothing else with it. Its real cost is that it asks the caller to do the work of trying again, and somebody ringing three trades off a search result will not.
A missed-call text back. Not a receptionist at all, and it belongs on the list because it is the cheapest option here by a distance. The caller gets an honest message inside a minute saying you are on a job, when you will ring, and asking what the work is.
A human answering service. Trained people, usually in a call centre, working from a script you write. They take a message, qualify the job, and put something in your diary if you let them.
An AI receptionist. Software that answers, holds a short conversation, captures the details and passes them to you or into your booking system.

Most of the advertising sits on the last one. Most of the value, for most trade businesses, sits on the second.

When is voicemail still enough?

When the phone barely rings with strangers.

Plenty of trade businesses run almost entirely on repeat customers, two builders they have worked with for a decade, and a property manager who texts. If your missed calls are suppliers, existing clients who will simply ring back, and the occasional recruiter, there is nothing here to buy.

Work the number out before you decide it is small, though, because owners guess low. A fortnight of your call log marked up honestly gives you the count of genuine new enquiries that never reached you, and what a missed call actually costs walks through the arithmetic.

When does a human answering service win?

When the call needs judgement in the first thirty seconds.

Emergency and after-hours work is the clearest case. Someone whose ceiling is coming down through a light fitting needs to be told what to switch off before anything else happens, and needs to hear a person while they are frightened. Software that stays calm through that is worse than nothing, because the caller can hear exactly what it is.

The second case is high-value work where one bad call outweighs a year of savings. Commercial jobs, insurance work, anything where the caller is a builder or a property manager quietly judging whether you sound like an outfit they want on site. Those callers are assessing you while they talk. Let them assess a person.

The third one catches people out. If your work cannot be described without a conversation, a script cannot capture it either. A service that books "a job" without establishing whether it is a two-hour repair or a three-day install has not saved you the phone call, it has moved it to nine at night.

When does an AI receptionist earn its place?

When the calls are repetitive, the volume is real, and what you want back is information rather than a decision. The signals that it fits:

The same handful of questions on nearly every call. Do you cover this suburb, do you do this kind of work, roughly what is a callout, how soon could someone come.
Enough missed enquiries that a person answering them properly would still be idle half the day.
Calls landing outside hours, when the alternative is not a person but silence.
Job types that can be described in a sentence and understood from a small number of facts.
A written record of what the caller said, which beats a number scrawled on the back of a docket.

The honest framing is that a good one is an excellent message-taker with a filter on the front. Ask it to be more than that and the failure modes get expensive.

Where does it go wrong?

Four ways, and they share a shape. The software committed to something nobody checked.

It quotes. A price said out loud on a call is a price the customer heard, and any system that can name a figure will eventually name it on the one job that does not fit the pattern.

It books. A diary filled by something that cannot see the van, the weather, or how the job before it is running is a diary someone unpicks on the morning.

It does not know it has failed. A person who cannot understand a caller says so. Software passes on what it thought it heard, and the mistake surfaces when you arrive at the wrong address with the wrong parts. Worth understanding how the thing behaves when it breaks before anything depends on it.

It sounds like software to a customer who rang for you. Some of them hang up without leaving anything, and those never appear in a report unless you go looking in the call log.

All four are prevented the same way. Let it capture and pass on. Prices, bookings and promises stay with a person, even when the person is you at four o'clock reading a list in the ute.

How do you actually choose?

On durable criteria, because rates and features change every few months and you should check both yourself before signing anything.

Price it against your own annual figure, not against how the monthly fee feels in isolation. If the missed enquiries are worth less over a year than the service costs, the answer is neither.
Ask what it is allowed to commit to. Anything that can quote or book without your approval needs a written limit, and a reason it exists.
Follow where the details end up. A message that lands in an inbox nobody reads has fixed nothing. It should reach you where you already look, carrying the number, the suburb and what the caller actually said.
Ask what it does when it does not understand. The good answer is that it says so, and either puts the caller through or takes a plain message. Anything else is a warning.
Check what you keep if you leave. Your number, your script, your call records and your customer details should all come with you.
Run it on your worst hour first. After-hours only, or overflow when the line is engaged. Then listen to a week of real calls before it goes anywhere near your main number.

What to do next

Start with the free move, because it works on all three options and costs nothing. Split the number so new enquiries and existing jobs go different ways, divert to whoever is nearest a desk, and put a missed-call text back on the line if there is not one already. It holds the enquiry for the twenty minutes that decide it.

Then count for a fortnight and get the annual figure on paper. Nothing else here is worth doing until that number exists, and it is the same number you will use to judge whether any of it worked. Phones are only one of five places trade and retail businesses leak time, and the bigger leak often sits further down the process, in quoting or in the follow-up nobody made.

If the figure stays high after the free changes, choose on the shape of your calls. Urgent, emotional and high-value work goes to people. Repetitive, out-of-hours, question-and-answer work can go to software, on the condition that it captures and never commits. Plenty of businesses land on both.

Then measure it the way you would measure a new van. Count the genuine new enquiries you never spoke to before, count them again a month later, and be willing to turn the thing off if the number did not move. That before-and-after test is what Shift would want in place before building anything, and a Flow Map is the same exercise run across the whole business rather than one phone line.