AI front desk, AI receptionist, answering service: what each one actually does

Three different products get sold to the same slammed plumber with the same promise: stop missing customers. A human answering service, an AI phone receptionist, and an AI front desk overlap enough in the sales pitch that owners buy one expecting the other. The differences are structural: who picks up, what they know, and what you pay for.

One disclosure up front: ServiceFront makes an AI front desk. That's the third category below, and it does not pick up your phone. We'll repeat it, because vendor pages tend to bury that kind of fact.

The spec sheet

	Human answering service	AI phone receptionist	AI front desk
Who picks up your phone	A person at a call center	An AI voice agent	Nobody. It doesn't touch the phone.
Where it works	Your phone line	Your phone line	Your website and the links you share
After hours	Yes, often priced higher	Yes, same price	Yes, same price
Two customers at once	Yes, each one billed	Yes	Yes
Answers from	Your script and FAQ sheet	Whatever it's given: a prompt, your site	A business profile the owner verified
When it doesn't know	Takes a message	Varies by product. Ask.	Says so and takes a message
Pricing shape	Per-minute or per-call	Per-minute, per-call, or flat monthly	Flat monthly

Human answering service: a person picks up

The oldest category. A trained operator answers as your business, follows your script, takes a message, and pages you for the hot ones. Some plans book appointments.

The strength is the obvious one: a real human voice, which still calms a stressed caller better than anything else on this page.

The structural limit is what that operator has to work from. They answer for dozens of businesses in a shift and know yours through a script and an FAQ sheet. Ask whether a leaking water heater can wait until Monday, and a good operator takes a message rather than guessing. That's the correct behavior, and it's also the ceiling: a script can't triage.

You pay for talk time. Housecall Pro's cost guide puts typical small-business plans at $135 to $450 a month, with $1.50 a minute and $2.50 a call as example rates. Nextiva's guide puts most live plans between $100 and $1,000+ a month, with per-call examples running $5 to $6. At the premium end, Ruby's published plans go from $250 a month for 50 receptionist minutes to $1,725 for 500. A busy month costs more, and the long calls (a homeowner walking you through a flooded basement) are the expensive ones.

AI phone receptionist: an AI voice picks up

An AI voice agent answers your actual phone line. It picks up on the first ring at 2am, holds nobody, and takes three calls at once without a staffing charge. That coverage is real, and human pricing can't match it: Goodcall's published plans run $79 to $249 a month per agent with unlimited minutes, and Nextiva's same guide pegs AI answering broadly at $50 to $500 a month. Per-minute and per-call AI plans exist too; the flat shape is the one that undercuts humans hardest.

The question that separates products inside this category: what does the voice answer from? An agent grounded in one paragraph about your business will improvise the rest, confidently, out loud, to your customer. Some products are configured carefully and escalate anything they can't verify. Before you route your line to one, ask what it says when it doesn't know your price for a job. The answer you want: "it takes a message."

Also honest: some callers hang up on a robot voice. How many depends on your customers; nobody's number on that is neutral, ours included.

AI front desk: nobody picks up, and here's what that buys

An AI front desk is an agent that lives on the business's own web surfaces (the website, your Google profile link, the link you text a customer) and answers written questions the way a good front desk would: do you cover my ZIP, are you licensed, is a sewage smell an emergency, roughly what a water heater swap runs. It answers from a profile of the business the owner has verified, and when a fact isn't in that profile it says "I don't know" and takes a message instead of guessing. Every conversation ends in an answer, a captured lead, or both, delivered to the owner's inbox.

The concession, stated plainly: an AI front desk does not answer your phone. If your whole problem is the phone ringing while you're under a sink, this category alone won't fix that today.

What it covers is the customer who never calls. The homeowner comparing three plumbers at 11pm isn't calling anyone. They're reading your site, and increasingly asking ChatGPT instead of reading at all. What usually greets them is a contact form that answers nothing and emails you a name after they've already booked someone else. That gap is what the category exists for.

Honesty about the label, too: "AI front desk" is a young category without an agreed spec, and ServiceFront is one of the companies pushing the term, so weigh our definition accordingly. The pricing shape so far is flat monthly; ours is $59 a month, for one data point.

Which one, honestly

Match the tool to where you actually lose customers.

If you lose them on the phone, you need something that picks up: an answering service or an AI receptionist. Per-call and per-minute pricing suits low, spiky volume; flat plans suit steady volume; round-the-clock human coverage costs the most of anything here.

If your calls need trade judgment (can this wait, what's a fair range), put the same question to every vendor in every category: what does the answerer have to work from? A script can't triage, and an ungrounded AI shouldn't.

If you lose the people who never call, phone coverage doesn't touch that. That's front desk territory.

These also stack. A phone answer and a web front desk fix different halves of "missed customers," and plenty of shops will end up running one of each.

If you're curious what an AI front desk would say about your business, paste your site's URL into servicefront.ai and ask it the questions your customers ask you. It answers with what it can verify and admits what it can't.