How to choose the best answering service for your small business

Start with your calls, not the providers

Spend ten minutes with your call log before you look at a single pricing page. You need four facts: how many calls you get in a busy month, how long they last on average, when they come in, and what callers want. A plumber who gets urgent calls at night needs something different from an accountant who gets questions in office hours.

What to look for

Score each provider on these criteria:

• Coverage. True 24/7 means nights, weekends and public holidays at the same price. Some plans cover business hours only and charge extra outside them.
• What it can do on the call. Answer questions from your information, book into your calendar, take a message with the details you need, and transfer to you or your staff.
• Simultaneous calls. What happens when three people call at once: a queue, voicemail, or an answer for each.
• How it bills. Per minute, per call or per caller, and what happens past the bundle.
• What you get after each call. A message, a transcript, a recording, a summary, and how fast it reaches you.
• Your number. Whether you can keep the number customers know and forward to the service, and whether you can forward only the calls you miss.
• Languages. Whether it can answer callers in the languages your customers speak.
• Leaving. Notice period, cancellation fees, and whether you can take your number with you.

Questions to ask a provider

Ask these in writing, so the answers are part of the record:

1. 1What exactly counts as a billable minute or call? Do spam, wrong numbers, hang-ups and hold time count?
2. 2How are calls rounded: per second, per started minute, or up to a minimum?
3. 3What does an extra minute or call cost once I pass my plan, and do you move me to a bigger plan automatically?
4. 4Are nights, weekends and holidays included at the same rate?
5. 5What happens when every agent is busy, or my minutes run out?
6. 6How do you transfer calls to me, and what happens when I don't pick up?
7. 7Are there setup, onboarding, number or per-feature fees?
8. 8Is there a minimum term, an auto-renewal, or a notice period to cancel?
9. 9Can I hear recordings or read transcripts of my calls?

Contract terms that change the price

These are real terms from published pricing and terms pages (as of October 2026). None is wrong in itself, but each changes what you'll pay or how you leave, so look for the same things in any contract:

• Rosie: No overage fee — going over moves you to the next plan. After an automatic upgrade the account stays on the higher plan unless you downgrade.
• Dialzara: When minutes run out, callers go to voicemail unless auto-recharge is on.
• Ruby: The money-back guarantee ends early once usage passes 500 receptionist minutes.
• Smith.ai AI Receptionist: Up to 10% of calls can be removed from a bill as spam.
• Posh: The entry plan includes no minutes: every minute is billed at its per-minute rate.
• Smith.ai Virtual Receptionists: No cancellation fee or long-term contract; 10% off with annual payment.

Red flags

Be careful when a provider:

• Won't tell you the overage rate, or shows only the annual price.
• Requires a long minimum term or a long notice period to cancel.
• Renews automatically into a bigger plan with no way back down.
• Can't give you a recording or transcript when a caller disputes what was said.
• Has no trial and no money-back period, so your first month is the test.
• Needs you to give up your existing number.

Test before you commit

Call the service the way your customers will: at night, at lunch, with an unusual question, with two phones at once. Ask something your information doesn't cover and see whether it guesses or says it doesn't know. Then read what you get afterwards. Most providers offer a trial or a money-back period, so use it on real calls, not a demo.