How to test an AI receptionist before you buy
Test protocolAs of November 11, 2026
Vendor figures on latency and accuracy are rarely comparable. With this protocol you can test several providers under the same conditions in about an hour each. 58 of 118 providers in our survey state a free trial or test option.
Preparation
- Give every provider the same knowledge base: hours, three services with prices, one contact person, your emergency rule.
- Use the same call forwarding setup and call from a mobile phone.
- Write down ten real requests from your business, including two difficult ones.
The ten checks
- Greeting and disclosure: Does the agent say it is an AI assistant, and does the recording notice play if recording is on?
- Latency: Time from the end of your sentence to the start of the answer. Measure ten times and note the average. See latency and barge-in.
- Interruptions: Does it stop talking when you interrupt, and does it use what you said?
- Names and numbers: Last name, email address, phone number and, depending on your business, an address or a policy number. Count the errors.
- Accents and noise: Call once with a strong accent or fast speech, once from a car or the street.
- Knowledge gaps: Ask something your knowledge base does not cover. Does it invent an answer? See hallucination.
- Transfer: Ask for a person. What happens when nobody answers? See warm transfer.
- Emergency: Describe an emergency typical for your industry. Does it tell you to dial 911 or alert the right person right away? See E911 and emergencies.
- Booking: Does it book into your real calendar or software, and what happens with a double booking?
- Follow-up: Does the summary arrive, is it correct, and where is the transcript stored?
What to request in writing
Score each provider on the ten checks and compare the results with the prices in the calculator.