Know when your AI receptionist gives the wrong answer
AI phone agents answer calls well until something changes: a prompt edit, a new model version, an expired calendar integration. Line Canary calls your agent on a schedule, asks a question you choose, and checks the answer like a customer would.
Problems a scheduled call catches
Small changes cause silent regressions
A prompt tweak meant for one situation changes answers in another, and nobody hears it until a caller does.
Integrations expire
When a booking or CRM connection fails, many agents apologize politely instead of raising an error, so dashboards stay green.
Agencies manage many agents at once
If you build voice agents for clients, you need to know which ones are broken before the client calls you.
An example check
Script
- Answer
- Listen 3s
- “What are your hours on Saturday?”
- Listen 12s
- Hang up
What should happen
The agent answers with Saturday hours, 11am to 10pm, and doesn’t transfer or hang up.
What Line Canary heard
Hi, thanks for calling Riverside Grill! … On Saturday we’re open from 11 AM to 10 PM. Is there anything else I can help with?
Workingthe agent gave the correct Saturday hours.
Test the agent your customers actually reach
Developer testing tools check an agent before release. Line Canary checks the live phone number after release, over the real phone network, on a schedule. It works with any AI receptionist that answers a phone number, whatever platform it’s built on.
Write checks in plain language
Describe what a good answer sounds like, such as “gives Saturday hours of 11am to 10pm” or “offers to book an appointment and asks for a name.” Claude compares each call’s transcript against that description and summarizes what went wrong when it fails.
- Ask about hours, location, or pricing and check the facts
- Ask to book and confirm the agent collects the right details
- Say “I need to speak to a person” and confirm the handoff works
Built for agencies
The Agency plan covers up to 40 lines with checks as often as every 15 minutes, so you can watch every client’s agent from one dashboard and hear the recording when something breaks.
Questions
- Which AI receptionist platforms does Line Canary work with?
- Any agent reachable by a phone number. Line Canary calls the number like a customer would, so it doesn’t need access to the platform itself.
- Can Line Canary have a full conversation with my agent?
- Line Canary speaks the lines in your script and listens between them. That covers most smoke tests, like asking a question or requesting a transfer. It doesn’t improvise multi-turn conversations.
- Will test calls show up in my agent’s analytics?
- Yes, they are real calls. Many teams filter them out by Line Canary’s calling number.
Related
- IVR testingTest your phone tree automatically. Line Canary presses the keys a caller would, records each menu, and alerts you when an option routes to the wrong place.
- Phone line monitoringLine Canary calls your business phone number on a schedule, listens to what callers hear, and texts you when the line is down, busy, or routing to the wrong place.
- Toll-free number monitoringMake sure your 800 number connects. Line Canary calls your toll-free number on a schedule, checks the greeting and routing, and alerts you when calls fail.
Find out what your callers hear
Map your phone menu for free, then watch one line daily on the free plan. No credit card needed.