AI receptionist vs answering service: costs

You already know you're missing calls. The van is on a job, the office phone rings out, and by the time you check voicemail the customer has booked someone else. So you start shopping for a fix, and three different products turn up in the search results: a human answering service, an AI receptionist, and missed-call text back.

They all promise the same thing, charge for it in different ways, and fail in different places. Below is how each one is billed, where it breaks and who it suits. Then you can run the numbers on your own calls instead of trusting anyone's sales page, ours included.

All prices below come from the vendors' public pricing pages, checked in October 2026. They change often, so check the page before you sign.

Option 1: a human live answering service

Real receptionists answer your calls under your business name. They take a message or transfer the call to your mobile, and on the bigger plans they book appointments.

How it's billed. Most services sell a monthly bundle of minutes or calls, and you pay extra for anything over the bundle. The unit matters more than the headline price.

Per minute. Ruby, a US virtual receptionist service, sells bundles of receptionist minutes: $250 a month for 50 minutes, $395 for 100, $720 for 200 and $1,725 for 500. A chatty caller costs you more than a quick one.
Per call. Smith.ai counts calls instead. Its Starter plan is $300 a month for 30 calls, with each extra call at $11.50, and its page says it doesn't charge for spam calls when your line passes caller ID.
UK, per call with set hours. Mail Boxes Etc. sells a live answering plan at £47.94 + VAT a month for 20 calls, with extra calls from £1.50 each. Live answering runs Monday to Friday 8am to 7pm and Saturday 9am to 3pm, and outside those hours calls go to an answerphone or get forwarded to you. There's a three-month minimum term.

What it handles well. A human can calm down someone with water coming through the ceiling, and copes with the odd request that fits no script or an existing customer angry about an invoice. For an emergency call, a person on the line is still the safest answer.

Where it breaks. Cost climbs with every call, so your best month is also your most expensive one. Check the hours too. The UK plan above is a daytime service, which leaves the evening and weekend calls a trade business most wants to catch going to an answerphone. And a human receptionist only books jobs as well as the instructions you gave them. If they can't see your calendar, you get a message, and you're still the one calling back.

Who it suits. Businesses where a single call is worth a lot and callers expect a person, such as law firms or high-ticket home improvement. It also suits owners with modest call volume who want a safety net.

Option 2: an AI receptionist, or voice agent

An AI voice agent picks up the call, talks to the caller in plain speech, answers your standard questions, and either books the job or takes the details and sends you a summary. We cover what one does day to day in the AI receptionist that never misses a call.

How it's billed. Pricing models vary more here than anywhere else, so check what the meter counts.

Per unique caller. Goodcall charges $79 a month per agent on its Starter plan, which includes 100 unique customers a month with unlimited minutes. Each extra customer is $0.50. Someone who rings back three times counts once.
Flat add-on to software you already use. Jobber, the field-service software, lists its Receptionist as a $29-a-month add-on on its pricing page, on top of a Jobber plan. Jobber says it can answer questions, take requests, book jobs in your calendar and text back callers who hang up.
Per minute or per call. Other tools bill the way the human services do, and a per-minute meter gets expensive when callers ramble.
Setup. Self-serve tools cost nothing to set up beyond your time. A custom-built agent that connects to your own job system usually comes with a one-off build fee and a smaller monthly running cost.

What it handles well. It answers at 2am on a Sunday. Ask whether it takes calls in parallel. If it does, the second and third caller on a stormy morning don't hit voicemail either. It's built for routine work: checking your service area, quoting your call-out policy, booking a slot into a calendar it can see, and sending you a tidy summary. Monthly cost moves far less with volume than a per-minute human service, which matters in a busy season.

Where it breaks. It's only as good as the setup. If nobody tells it what counts as an emergency, it'll treat a gas smell like a routine quote request. It needs a clear handover rule: these calls get transferred to a human or to your mobile straight away. Some callers hang up the moment they realize it's software. And it can't make a judgment call nobody gave it rules for.

Who it suits. Trades and service businesses with a steady flow of routine calls, a calendar the AI can book into, and a real after-hours leak. Our piece on stopping after-hours leads from going to voicemail walks through how that plays out for plumbers, electricians and HVAC firms.

Option 3: missed-call text back

Nobody answers. When a call goes unanswered, the system texts the caller automatically, along the lines of "Sorry we missed you, we're on a job. What do you need help with?" The conversation then carries on by text until you or a team member pick it up.

How it's billed. Often as a feature inside a bigger platform. HighLevel, a sales and marketing platform with a missed-call text back setting, starts at $97 a month and bills phone numbers and text messages as usage on top. The texts themselves cost almost nothing. Twilio, one of the messaging providers developers build these tools on, lists US texts at $0.0083 per message segment plus carrier fees, and a local number at $1.15 a month. You're paying for the software around the text.

What it handles well. It's cheap and takes an afternoon to switch on. It can catch the caller who would have hung up and rung the next name on the list. For non-urgent work like quotes, cleaning, or a service visit next week, a fast text is often all the customer wanted.

Where it breaks. It doesn't answer the phone. The caller with a burst pipe wants someone on the line now, and a text saying you'll get back to them may send them straight to a competitor anyway. It also books nothing on its own. Someone still has to read the replies and arrange the job, and if that someone is you on a roof, the lead waits. The texts also have to follow the messaging rules in your country, which the platform should handle but you should check.

Who it suits. Low-urgency businesses with small budgets, or anyone who wants a stopgap this week while they decide on something bigger. It also works well as a backup layer under either of the other two options.

Side by side

	Human answering service	AI receptionist	Missed-call text back
Typically billed	Monthly bundle of minutes or calls, plus overage	Monthly plan, metered by callers, minutes or calls; custom builds add a setup fee	Feature in a monthly platform, plus small per-text usage
Emergencies	Best of the three	Fine if you set clear transfer rules	Weak, the caller gets a text, not a person
Booking jobs	Only if they can see your calendar	Yes, when connected to your calendar	No, someone has to follow up
After hours	Depends on the plan's hours	Yes, around the clock	Yes, but only as a text
Volume spikes	Cost rises with every call	Handles many calls at once at a mostly flat cost	Handles any volume, replies pile up for you
Suits	High-value calls, callers who expect a person	Steady routine calls, real after-hours leak	Low urgency, tight budget, backup layer

How to work out your own cost

The number that decides this is what your missed calls are worth, against what each option costs at your call volume. You need four numbers:

Missed calls a month. Your phone provider's call log will show the calls that went unanswered. Use real numbers, not a guess.
The share that are new work. Strip out suppliers, existing customers and spam. What's left are the calls that could have become jobs.
How many you'd win if you answered. Your own close rate on answered inquiries.
Average job value. Use the average for a typical first job, not your biggest one.

Missed calls × share that are new work × close rate × average job value = what you're leaving on the table each month.

Then price each option at your volume, using the unit it bills on. Count minutes for a per-minute service, calls for a per-call one, and unique callers for a tool like Goodcall.

A worked example. This is an illustration with made-up numbers, not a real client. Picture a two-van plumbing firm whose call log shows 40 unanswered calls a month. Of those, 15 are new inquiries. When they answer an inquiry they win about half, so that's 7 jobs, and a typical first job is worth $350. That's roughly $2,450 a month in work that went elsewhere.

Now price the options at the published rates above. Sending those 40 calls to Smith.ai's Starter plan would come to about $415 a month: $300 for the first 30 calls plus ten extra calls at $11.50. Ruby's per-minute bundles depend on how long the calls run. At three minutes each, that's 120 minutes, which lands in the $720 bundle. An AI receptionist on Goodcall's Starter plan would cost $79, since 40 callers sit well inside its 100. Text back costs the least in cash, but it only recovers the callers who reply to a text, and you'd have to measure how many do.

The cheapest line isn't automatically the right one. If most of these missed calls are 9pm emergencies, a human or an AI with a transfer rule pays for itself, and a text alone may still lose the job. If they're quote requests that can wait until morning, text back may be enough. Your call log tells you which.

Where we land

For most trade and service businesses with a real after-hours leak, an AI receptionist set up properly is the best value. It should book into your calendar, transfer emergencies to a human, and send a text when a call drops. A human service still wins when every call is high-value and callers expect a person. Text back is the right first step when budget is tight, and it's a useful backup under either of the others.

If you run a trades or home-services firm, our AI Lead Responder is the version of this we build, and the home services page covers what else we set up for trades.

Frequently asked questions

How much does an AI receptionist cost?

Self-serve plans start well under $100 a month. On the pricing pages we checked in October 2026, Jobber's Receptionist was a $29-a-month add-on to a Jobber plan, and Goodcall's Starter plan was $79 a month for 100 unique callers. A custom agent connected to your own job system adds a one-off build fee on top of a monthly running cost.

Is an AI receptionist cheaper than an answering service?

On published prices, yes. Human services charge per minute or per call, so the bill grows with every call, while AI plans stay mostly flat. In the worked example above, 40 calls a month came to about $415 on Smith.ai's Starter plan and $79 on Goodcall. A human service can still be worth the difference when each call is worth a lot and callers expect a person.

Are there extra costs on top of the monthly price?

Often. Check what happens when you go over the plan: Goodcall charges $0.50 for each caller beyond the 100 included, and per-minute plans charge for every extra minute. Some tools also need a paid base plan, as Jobber's add-on does. Then count your own setup time, or the build fee if someone connects it to your systems for you.

Can I keep my existing business number?

Yes. You forward calls from your current number to the AI, either all of them or only the ones you don't answer after a few rings. Customers keep dialling the number on your van and your website, and you can turn the forwarding off again in your phone provider's settings.

Can an AI receptionist handle emergency calls?

Only if you tell it what counts as an emergency and where to send it. Give it a short list, such as a gas smell or water coming through a ceiling, and a number to transfer those calls to straight away. Without that rule it treats an emergency like any other inquiry.

Is missed-call text back enough on its own?

For work that can wait until tomorrow, it often is. For urgent calls it falls short, because the caller gets a text instead of a person and someone still has to read the reply and book the job. It's the cheapest of the three, which makes it a good backup underneath an AI receptionist or an answering service.

Sources

Prices quoted above come from these public pages, checked on 5 October 2026:

Not sure how many calls you're missing, or which of these fits? Our free AI-readiness audit gives you a straight read in a few minutes. Or book a call and we'll go through your call log with you.

AI Receptionist vs Answering Service vs Text-Back: Costs