Every owner asks the same question before they touch their phone line: what does this actually cost.
Fair question. The honest answer depends on which option you're comparing it to, because "answering the phone" has three very different price structures hiding behind it. Here's the real breakdown.
Option 1: a full-time receptionist
A receptionist isn't just a salary. By the time you add payroll tax, benefits, a desk, a computer, training time, and the inevitable turnover, the fully loaded cost of one front-desk hire usually runs well into the tens of thousands per year, even at a modest wage.
And here's the part owners forget until it bites them: one person can only cover one shift. Lunch breaks, sick days, vacation, the two weeks between when someone quits and when you fill the role, all of that is dead air on your phone line. Nights and weekends are dead air too, unless you're paying for a second or third person to cover them.
You're not really buying "someone who answers the phone." You're buying one person's attention, for roughly 40 hours a week, with gaps built in.
Option 2: a traditional answering service
The classic answering service fixes the coverage problem. A live human picks up around the clock, takes a message or books an appointment, and forwards it to you.
The catch is how it's billed. Most of these run on a per-minute or per-call rate. That sounds fine when you're small. It stops sounding fine the moment your business grows, because now every extra call, every long-winded caller, every busy Friday is a bigger invoice. You end up in the strange position of dreading a spike in demand, the exact thing that's supposed to be good news for your business.
Per-call and per-minute pricing also makes your monthly bill nearly impossible to forecast. You can budget for a receptionist's salary down to the dollar. You cannot budget for "however many minutes strangers decide to talk this month."
Option 3: AI answering
AI answering services typically price the other way: a flat monthly fee, usually in the hundreds of dollars, that doesn't move no matter how many calls come in or how long they run.
That single change flips the incentive back in your favour. A busy month is just a busy month. It doesn't show up as a bigger bill, because you're not paying by the minute, you're paying for the line to be covered, full stop. The AI answers instantly, every time, whether it's the first call of the day or the fortieth one stacked on top of each other during a lunch rush.
It also closes the coverage gap a receptionist can't close on their own. No lunch break, no sick day, no 2 a.m. gap, no ramp-up time for a new hire. It speaks whatever language your customers speak, English and French out of the box for Canadian businesses, without you staffing for it.
What actually drives the price
Within AI answering, the flat fee still moves based on a few honest variables. None of them are volume-based penalties, they're scope decisions you make up front.
| Driver | What it changes |
|---|---|
| Call volume | Higher-volume lines need more headroom built into the plan, though pricing stays flat within your tier |
| Scope | After-hours-only coverage costs less than having the AI run your full line, every call, every hour |
| Integrations | Connecting to your booking calendar, CRM, or ordering system takes setup work; a simple message-taker doesn't |
| Complexity of the call | Simple appointment booking is cheaper to configure than multi-step ordering or troubleshooting flows |
That's the whole list. There's no hidden lever tied to "how many people called you this month," which is exactly the point.
The per-minute trap
If you're shopping human answering services, read the contract twice. Watch for:
- A low advertised rate that only applies to short calls. Anything over 60 or 90 seconds often jumps to a higher tier.
- Overage charges once you exceed a bucket of included minutes. The quoted price is a floor, not a ceiling.
- Per-call fees stacked on top of per-minute fees. You can get billed twice for the same call.
- No visibility into your own usage until the invoice arrives. By the time you see the number, the month is already over.
None of this is a knock on the people doing the work. It's a math problem: a business built on billing your growth will always have an incentive structure pointed away from your interests.
The real comparison
Missed calls have a cost too, even if it never shows up as a line item. Restaurants alone lose an estimated 85% of calls during peak hours according to Slang AI's research, and 78% of customers buy from whichever company responds first, per a Teamgate study. Every one of those is a call that either got answered, or got the second company's number instead. Sempera's site has a free ROI calculator if you want to see what a missed call is actually worth to your business.
Run the comparison as: (receptionist cost + coverage gaps) vs. (answering service base rate + growth penalty) vs. (flat AI fee, always on). For most businesses answering more than a handful of calls a day, the flat fee wins on both cost and coverage, and it's the only one of the three that doesn't get more expensive the better your business does.
That's what Sempera runs on: a flat monthly fee, never per-minute. You run your business. We run your phones.
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