A service business has three ways to answer the phone when the owner is on a job. Hire someone, pay a human answering service, or run an AI phone agent. Here is what each costs, from the vendors’ own published pricing, and where the arithmetic tips.
The three options in one line each
- Hire a receptionist. A full seat, benefits and coverage gaps included, for a phone that rings in bursts.
- Human answering service. A shared call center answers as your business, bills by the call or the minute.
- AI phone agent. Software that answers, qualifies and books, billed flat per month.
What the answering services publish
Ruby’s virtual receptionist plans start at $245 a month, billed per minute past the plan’s included minutes (source: ruby.com). Smith.ai’s $300 a month plan covers 30 calls, then $11.50 per call over (source: smith.ai/pricing).
Both are good products. The pricing model is the point, not the quality. Per-call and per-minute billing means the month your marketing finally works is also the month your phone bill jumps.
Run the Smith.ai numbers at three volumes
Using nothing but the published plan above:
| Calls in the month | Smith.ai bill |
|---|---|
| 30 | $300 |
| 50 | $530 |
| 80 | $875 |
At 30 calls the answering service is cheaper than a $499 flat fee. The lines cross at about 47 calls a month. Past that, every extra call costs $11.50 while the flat fee stays flat.
If you get 20 calls a month, do not buy an AI agent from me. The answering service wins on the sticker and you should take it.
The flat-fee case
The AI phone agent I build is $499 a month plus a $500 one-time setup, month-to-month, cancel anytime. The setup is a build, not an activation fee: I listen to what actually comes in, write the greeting, the disclosure, the qualifying questions, the booking rules and the escalation paths, then call it myself from the awkward angles before it goes live on your existing number.
What that buys on every call:
- Answered on the first ring, even when you are already on a job.
- Each caller qualified: what the job is, where it is, whether you take it.
- Appointment booked, or a clean handoff when it cannot.
- Every call recorded and transcribed, and the caller is told so at the top of the call.
What AI handles well, and what it hands off
It handles routine intake and booking. It does not guess. When a call falls outside what it was built for, it transfers, takes a message or books a callback, whichever we decided during the build. It tells every caller it is AI. Outbound auto-calling is deliberately disabled for TCPA and FTSA compliance.
An answering service gives you human warmth. The AI agent gives you flat pricing and an instant answer at 9 pm on a Saturday. Pick the one your call volume and your customers actually need.
Hear one before you decide
Amanda runs on my own pest control business line, and she is the same class of agent I would build for you. Talk to her on the AI phone agent page, then decide whether the math above describes your phone. If you are not sure the missed calls add up to much, run the missed-call revenue calculator first. It is free and asks for no email.