Managed Agents / Phone surveys
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#1 on Speech Agent ArenaSpeech Agent Arena is Artificial Analysis' independent benchmark for grading speech to speech models on enterprise tasks using human evaluators.
Automated phone surveys that get every question answered.
Call every respondent, ask your questions as written, and save each answer to your survey.
Trusted by leading teams
Ranked #1
on EVA-Bench and Speech Agent Arena
Get answers you can compare from every survey call
The agent reads your questions and scales exactly as written, and saves each answer in one short call.
The agent calls participants the day after their class, in the hours you set, and confirms it has the right person. Missed calls get a retry.
The agent reads your wording and 1 to 5 scale exactly, repeats a question when asked, and doesn't suggest answers.
The agent saves scale answers as numbers and open answers as spoken. When an answer is off the scale, it asks again.
The agent lets respondents skip a question or end the call, saves partial answers as incomplete, and adds anyone who asks to stop to your opt-out list.
How automated phone surveys work with an AI agent
What is an automated phone survey?
An automated phone survey runs your questionnaire by phone with no live interviewer. Here an AI agent calls each respondent, says the survey is voluntary and how long it takes, and reads your questions and scales exactly as written.
- Load questions and scales
- Save answers to your survey
- Add to opt-out list
- Transfer to program staff
How is it different from an IVR survey?
A press-one recording can only take a key press. This agent saves open answers as spoken, and when someone says ten out of ten on a five-point scale, it asks again. Skips save as skipped, and partial calls save as incomplete.
How would you rate the instructor, from one to five?
Ten out of ten.
Our scale stops at five. Would you say that's a five?
Who does the survey reach, and who can say no?
Results reflect who you call and who picks up, so they aren't representative on their own. Outbound calls go to US numbers only. Anyone who asks not to be called goes on your opt-out list, and complaints transfer to program staff.
Survey completed
Did the respondent answer or skip every survey question before the call ended?
Phone survey software that keeps answers comparable
A survey is only useful if each person heard the same question. These cards cover how the agent protects that, and what it leaves out.
The wording never drifts
The first call of the week and the last get the same question and the same scale, with no paraphrasing on a tired afternoon.
Your data stays clean
Scale answers save as numbers, skips as skips and partial calls as incomplete, so nobody has to guess what a blank means.
Voice survey software that asks only what you wrote
Follow-ups run from the rules you set. The agent won't improvise a probing question the way a trained interviewer might.
Reads a scale out loud without leading anyone
Respondents think out loud, wander off the scale and ask to hear a question again. Cartesia's speech models take that in stride.
- $0.03per minute
- #1on Speech Agent Arena and EVA-Bench
- 24/7answers every call, at any hour
Gives them time to think
People weigh a four against a five out loud. The agent waits for the answer and doesn't fill the silence with a hint.
Your questionnaire, loaded fresh
The LLM you select gets tools to load questions and scales, save answers and add a number to the opt-out list.
Neutral by choice
An even, polite library voice keeps tone from nudging anyone's rating.
Three ways to run a phone survey
Teams buying automated phone survey software usually weigh a voice agent against these two.
| Cartesia agent | Live interviewers | Touch-tone IVR survey | |
|---|---|---|---|
| Same wording for everyone | Word for word on each call | Close, with training | Yes, it's a recording |
| Open answers | Saved as spoken | Typed up by the interviewer | Rarely supported |
| Off-scale answer | Asks again | Asks again | Rejects the key press |
| Probing with judgment | Only the follow-ups you write | Skilled interviewers can | No |
| How you pay | $0.03 per minute plus LLM usage | Usually hourly or per completed survey | Usually per minute or per call |
See which calls completed the survey
Every call is recorded and transcribed. See which calls completed the survey, which stopped partway, and which respondents opted out.
Launch a phone survey agent in three steps
Start buildingClone the class survey
Replace the swim class questions with your own wording, scales, calling hours and the time the survey takes.
Connect your survey and list
Link your questions, your results store and your opt-out list through tools you configure, then load the respondents to call.
Take your own survey
Put your number on a test list, give an off-scale answer, skip one question and ask to stop. Check how each one saved.
Enterprise-grade security
HIPAA compliant

SOC 2 Type 2

GDPR
Phone surveys FAQs
What is an automated phone survey?
An automated phone survey is a survey run by phone without a live interviewer. Here an AI phone survey agent calls each respondent, reads your questions and scales as written, and saves each answer to your survey.
Can an automated phone survey run NPS or CSAT?
Yes. Put the NPS question with its 0 to 10 scale, or a 1 to 5 CSAT question, in your survey, and the agent saves the number.
Can an AI phone survey ask follow-up questions?
Yes, the ones you write into the survey, with the rule for when each applies.
Are automated phone survey results representative?
No, not by themselves. Results reflect who you call and who picks up, as with any phone survey.
Can respondents decline an automated phone survey call?
Yes. The agent says the survey is voluntary, stops when asked, and adds the number to your opt-out list.
What happens when a respondent skips a question or ends the call early?
The agent saves a skipped question as skipped. When the respondent ends the call, it saves the answers so far as incomplete.
Can the agent transfer a respondent to our staff?
Yes. Complaints and safety reports transfer to program staff, and you control exactly when else the agent transfers.
How much does an automated phone survey cost?
Survey length sets the cost. The agent is $0.03 per minute of call time, so a three-minute survey is $0.09 in agent time. LLM usage is billed separately, and a Cartesia phone number adds $0.014 per minute, or nothing if you bring your own Twilio account or SIP trunk. The free plan includes $1 of agent calls a month, so you can test the agent before you pay. See pricing.
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