AI Receptionist Pricing Models Explained

AI receptionists are priced in four main ways: per minute of conversation, per call handled, as a monthly bundle with included usage, or as a per-user add-on to a phone system. Per-minute pricing rewards short calls; per-call pricing rewards long ones; bundles reward predictable volume. Knowing which model you're buying, and how it rounds, matters more than the headline price.

The four common models

1. Per minute (pay as you go or prepaid)

You pay for talk time. Rates are usually stated per minute, sometimes with rounding.

• Example: Callata bills AI agents from prepaid minutes at $0.25 per minute of talk time, sold in 60, 250 or 1,000-minute packs.
• Good for: variable volume, short calls, businesses that want spend to match use.
• Watch for: rounding rules, minimum charges per call, whether hold or transfer time counts.

2. Monthly bundle with included minutes plus overage

A fixed fee covers a set number of minutes; extra minutes are charged at an overage rate.

• Example: RingCentral lists its AI Receptionist at $49 per month standalone (or $39 as a RingEX add-on) with 100 minutes included and $0.50 per minute after that, billed in 30-second increments (checked October 1, 2026).
• Good for: steady volume near the included amount.
• Watch for: unused minutes usually don't roll over; overage can exceed the base fee.

3. Per call

You pay a set price per handled call regardless of length.

• Example: Smith.ai lists Starter at $300 per month for 30 calls with $11.50 per additional call, and applies the same plans to its AI-first and human-first options.
• Good for: long calls, such as legal or service intake.
• Watch for: what counts as a call (spam, hang-ups, transfers), and per-call rates that make short FAQ calls expensive.

4. Per user or per account add-on

AI is sold as an add-on license on a phone plan, sometimes with a usage cap.

• Example: Ooma's AI Productivity Agent Bundle starts at $15 per month per account license with up to 1,250 calls and/or actions, and requires Ooma Office Pro Plus.
• Good for: businesses already on that vendor's phone system.
• Watch for: the base plan's per-user cost, which multiplies with team size.

Comparing models at your volume

Here's the same month priced three ways, assuming 60 calls averaging 2.5 minutes (150 minutes). Your average may differ; measure it first.

Model	Example rate	Cost for 60 calls / 150 min
Per minute prepaid	$0.25/min	$37.50
Bundle + overage	$49 incl. 100 min, $0.50/min after	$49 + $25 = $74
Per call	$10/call (Smith.ai Starter effective rate)	$600 (Starter covers 30 calls; overage applies)

Per-call pricing is typically used by services that include human agents or intensive intake, so this isn't an apples-to-apples feature comparison. It shows how the model changes the bill.

Questions to ask any vendor

• Is billing per second, per 30 seconds, or per minute?
• Is there a minimum per call?
• Do spam calls, hang-ups and wrong numbers count?
• Does time spent transferring or on hold count?
• Are text replies or emails billed, and how?
• What happens at the end of included usage: overage, pause or downgrade?
• Do unused minutes roll over or expire?
• Is the AI price on top of a per-user phone plan?
• Can I bring my own AI provider account to lower costs?
• Are outbound AI calls priced the same as inbound?

Hidden cost: the base phone plan

AI receptionist pricing often sits on top of a phone system priced per user. For a team of five, that base cost can exceed the AI cost. Callata's launch comparison, using vendors' published month-to-month prices checked September 28, 2026, put five users at $150 per month on RingCentral RingEX Core and $124.75 on Ooma Office Pro. Callata Office is $99 per month with five users included; above five, it adds $20 per user per month, so it becomes a per-user plan too once you pass the included seats.

Hidden cost: your own time

Every model requires you to:

• Write instructions and business facts
• Test before going live
• Review conversations and fix gaps

Budget a few hours in the first week and a short weekly review after. See review AI agent conversations.

Controlling spend under any model

• Start with one job (after hours or overflow) before giving the AI every call
• Keep greetings and answers short; long monologues cost minutes
• Set clear rules for when to take a message and end the call
• Watch minutes per agent weekly
• Use prepaid balances or caps where available

More in manage your AI minute balance.

Reading a vendor's pricing page carefully

Pricing pages are written to make the headline number look good. When you read one, separate four things:

1. The platform fee. What you pay before any calls are handled. For AI add-ons, this may be a phone plan priced per user.
2. Included usage. Minutes, calls or "actions" in the base price. Note what counts as an action: a text, an email or a transfer may each count.
3. Overage. The price after included usage, and how it's rounded.
4. Limits. Concurrent call caps, business-hours-only coverage, or features reserved for higher tiers.

Write these four lines for each vendor on a single sheet. It's the fastest way to compare offers that are packaged differently.

Matching the model to your call pattern

Your pattern	Model that usually fits
Short, frequent FAQ calls	Per minute with fine-grained rounding
Long intake calls (legal, insurance, complex quotes)	Per call
Steady, predictable volume	Bundle sized near your actual usage
Highly seasonal volume	Prepaid per minute, topped up in busy months
Already locked into a phone vendor	That vendor's add-on, if the per-user base cost is acceptable

Total cost over a year

Monthly prices hide how costs add up. Do a twelve-month estimate:

• Base phone plan × team size × 12
• AI usage at your estimated minutes × 12, adjusted for seasonal months
• One-time fees (activation, texting registration)
• Your setup time in the first month and review time after

A per-seat phone plan with a cheap AI add-on can cost more over a year than a plan with users included and pay-as-you-go AI minutes, while at one to three users a per-seat plan may be the cheaper option. Run the numbers at your real headcount, and again at the headcount you expect next year.

How Callata prices AI agents

Callata Office is $99 per month with five users included and $20 per month for each additional user. AI agents are optional. Calls with an AI agent use one AI minute per minute of talk time at $0.25 per minute; each AI text reply uses a quarter minute; there is no separate charge per email. Minutes are prepaid in packs of 60 ($15), 250 ($62.50) or 1,000 ($250). When the balance reaches zero, agents pause and calls go to voicemail, so there's no overage.

If you already pay ElevenLabs, you can connect your own account; ElevenLabs bills the voice AI usage and Callata charges a platform fee of a quarter minute per minute. See BYO voice AI cost comparison. Get started with Callata.