“Flat rate” is one of the most stretched phrases in the answering service business. Almost nobody sells truly unlimited answering for one fixed price. What you’ll usually find is a monthly fee with an allowance of minutes, calls or customers, and a rule for what happens when you go past it. That rule decides your bill in the months that matter, so it’s worth understanding before you sign up for anything.
Below are the five ways answering services actually charge, what one realistic month costs on each, and the questions that tell you whether a “flat rate” is really flat. Every price comes from the vendor’s own pricing page, checked on 22 October 2026. We make Ansdale, an AI receptionist, and it’s in the comparison too, including where it isn’t flat.
How do answering services actually charge?
- Per minute. The classic live answering model: a monthly plan with included minutes, then a per-minute rate. PATLive’s 200-minute plan is $349 with extra minutes at $1.99, and Ruby’s 50-minute plan is $250. How minutes are rounded matters a lot. Ruby bills in 60-second increments rounded up, while Specialty Answering Service says it bills by the second.
- Per call. A plan with a number of calls, then a fee per extra call. Smith.ai’s live receptionists start at $300 for 30 calls with $11.50 for each extra one. Upfirst’s AI receptionist starts at $24.95 for 30 calls. Long calls cost the same as short ones, which suits some businesses and not others.
- Per unique customer. Goodcall counts each phone number once a month, from $79 for 100 customers. A regular who calls five times counts once; every new lead counts.
- Plan jumping. Rosie doesn’t charge overage. Instead it moves you up to the next plan at that plan’s standard price, so going over the $49 plan’s 250 minutes puts you on the $149 plan.
- Prepaid minutes. Dialzara works like a top-up: you buy minutes or switch on auto-recharge, and when the balance hits zero, calls go to voicemail.
None of those is a trick. They’re different trade-offs. But each one turns into a different bill when your phone gets busy.
What does one busy month cost on each?
Take a contractor with 150 calls in a month, averaging three minutes each: 450 minutes. Here’s the cheapest way to cover that on each service’s published plans.
| Service | Type | How it’s counted | 150 calls / 450 minutes |
|---|---|---|---|
| Upfirst | AI | Per call | $119.95 (90 calls at $59.95, then 60 at $1 each) |
| Rosie | AI | Minutes, then next plan | $149 (moved up to the 1,000-minute plan) |
| Dialzara | AI | Minutes, prepaid | $199 (500-minute plan) |
| Ansdale (ours) | AI | Minutes | $199 (500-minute plan) |
| Smith.ai AI receptionist | AI | Per call | $270 (150-call Pro plan) |
| MAP Communications | Live | Per minute | About $595 (250 minutes at $339, then $1.28 a minute) |
| PATLive | Live | Per minute | $759 (500-minute plan) |
| Smith.ai receptionists | Live | Per call | $1,440 (90 calls at $810, then $10.50 each) |
| Ruby | Live | Per minute | $1,725 (500-minute plan) |
Goodcall isn’t in the table because it depends on how many different people call. If those 150 calls came from 120 different numbers, its Starter plan would come to $79 plus 20 extra customers at 79 cents, or $94.80. Live services will usually bill more minutes than your call log shows, because rounding, hold time and note-taking get counted, so treat the live prices as a floor.
What happens in your worst month?
This is where “flat” gets tested. Double the example to 300 calls after a storm and the models pull apart:
- Per-minute live services roughly double, because every minute is paid for. At PATLive, 900 minutes would cost about $1,475.
- Per-call plans jump to the next tier or pile up per-call fees. Upfirst’s 300-call plan is $159.95; Smith.ai’s AI Pro plan is $500 for 300 calls.
- Plan-jumping can be surprisingly cheap if you land inside a big allowance: Rosie’s $149 plan includes 1,000 minutes.
- Prepaid minutes run out, and if auto-recharge is off, callers get voicemail at exactly the wrong moment.
Ansdale, to be straight about it, isn’t unlimited either. Each plan ($49, $99 or $199 a month) includes 100, 250 or 500 AI minutes, and extra minutes are billed per minute rather than calls being cut off. If you’re regularly going over, moving up a plan is usually cheaper, and our pricing page explains how that works.
Questions that tell you if a flat rate is really flat
- What exactly is included? Minutes, calls, conversations or customers, and how many.
- What happens when I go over? A per-unit rate, an automatic plan change, or voicemail.
- How is a minute or call counted? Rounding, hold time, after-call notes, spam and wrong numbers.
- Do nights, weekends and holidays cost more? Ruby and Abby Connect say they don’t add time-of-day charges; check anyone else.
- Are there setup or other fees? AnswerConnect’s own price list, for example, adds a $49.99 setup fee on some plans.
- Is booking included? Some cheap plans only text a booking link or take a message.
- Is there a contract? Most of the services above are month to month, but confirm it.
Which model suits a trade business?
If your calls are short and frequent, per-call pricing penalises you and per-minute pricing is kinder. If they’re long and occasional, it’s the reverse. If you have lots of repeat customers, per-unique-customer pricing can work out well. And if your volume swings with the weather, look hardest at what the worst month costs, not the average. For more detail, our virtual receptionist pricing guide compares the models, and our best AI answering services roundup covers the AI options.
Questions people ask
Is there a truly flat-rate answering service?
Rarely. Most services charge a monthly fee with an allowance of minutes, calls or customers, then bill extra, move you to a bigger plan, or stop answering when you go over. Ask what happens past the allowance.
Is per-minute or per-call pricing cheaper?
It depends on call length. Short, frequent calls favour per-minute pricing; long, occasional calls favour per-call pricing. Price your own last month on both before you choose.
How much does an answering service cost per month?
On 22 October 2026, AI receptionists started at about $25 to $99 a month (Smith.ai also has a free 25-call tier), while live services started around $99 to $300 for a small allowance of minutes or calls. A month of 150 three-minute calls ranged from about $120 to $1,725 across the services we priced.
Is Ansdale flat rate?
Ansdale is a fixed monthly price of $49, $99 or $199 with 100, 250 or 500 AI minutes included and booking on every plan. Extra minutes are billed per minute, so it isn’t unlimited.
Leave a Reply