Thousands of simulated calls test your voice IVR agent

Know your AI agent works before it ever talks to a customer.

Know your AI agent works before it ever talks to a customer. Our AI personas put your voice agent through thousands of real-world calls — every customer type, every scenario. The result: a scored report on compliance, tone, and accuracy.

3,000+
Test scenarios per campaign
50+
Performance metrics analyzed
100%
Conversations scored and documented
How it works

Validate every AI Agent release with confidence.

Before rolling out a new version of your AI phone agent, run a comprehensive test campaign that measures customer experience, accuracy, compliance, latency, and more.

STEP 01

Our AI Agents call your IVR

Our AI voice agents run real customer scenarios — claims, billing, appointments — and call your IVR like real customers.

STEP 02

Every conversation  is evaluated

Every call is recorded, transcribed, and scored turn by turn against the expected outcome, compliance rules, and conversation quality.

STEP 03

You get actionable reports

Track success rates, containment, latency, compliance, sentiment, and every other metric that matters—complete with recordings, transcripts, and recommendations.

What we measure

Four metrics that decide whether your IVR is helping or hurting.

Every conversation rolls up into the same four numbers — so you can compare runs week over week without guessing.

Time to resolution

Seconds from call start to the customer's intent being handled. Tracked per scenario, with drift alerts.

01:42
median across scenarios

Failure / containment rate

Percentage of calls that fail to resolve or escalate to a human agent — the number your CFO actually cares about.

8.4%
↓ 3pt vs. last week

Menu depth & misroutes

Average IVR levels traversed and wrong-path rate. Find the prompts customers can't navigate.

3.1
avg. menu depth

Speech recognition accuracy

How well your IVR understands clean, accented, and noisy speech from our agent voices.

94%
across 6 voice profiles
Live demo

Listen to an agent test an IVR in real time.

One scenario, one call, scored end to end. This is the raw output you'd see in your weekly report.

Recording · scenario #03
Insurance claim filing — Acme Telecom IVR
Resolved
0:001:42

Sample player — production reports include the full MP3, downloadable transcript, and per-turn scoring.

Transcript
13 turns · 02:23
00:01
Bank IVR
Thanks for calling. How can I help you with your account today?
00:06
Test AI Agent - Michael Patterson
Hi. Thanks for picking up. Yeah, I'm just calling to check my account balance. Can you pull that up for me?
00:14
Bank IVR
I'd be happy to help you check your balance. However, I don't have direct access to pull up live account information over the phone. Here are your best options. Quickest way, log in to your online banking or mobile app. Your balance shows instantly and securely. If you need help accessing online banking, I can walk you through logging in, or if you've forgotten your password, I can guide you through a reset. If you'd prefer to speak with an agent, I can escalate you to someone who can verify your identity and retrieve your balance directly. Which option works best for you?
00:50
Test AI Agent - Michael Patterson
Oh, okay. I see. Yeah, I don't have my phone handy right now to log in to the app. Could you escalate me to someone who can pull it up? I'm fine with doing the verification thing. Whatever you need.
01:05
Bank IVR
Absolutely. I can escalate you to an agent who can verify your identity and pull up your balance right away. Before I transfer you, let me gather a couple quick details to speed things up. What's your full name?
01:18
Test AI Agent - Michael Patterson
It's Michael Patterson.
01:22
Bank IVR
Great. Thank you, Michael. And what's the best callback number to reach you, or are you calling from the number you'd like us to use?
01:31
Test AI Agent - Michael Patterson
I'm calling from my home phone right now so you can use this number. It's five five five zero one four seven.
01:39
Bank IVR
Perfect. I have you down as Michael Patterson. Callback number, five five five zero one four seven. Just to confirm, is there a specific account you're asking about, or do you just need the balance on your primary checking or savings account?
01:55
Test AI Agent - Michael Patterson
Yeah. Just my primary checking account. That's the main one I use.
02:02
Bank IVR
Got it. So your primary checking account balance, I have everything I need. Um, let me get you transferred to an agent now. They'll verify your identity quickly and pull up that balance for you right away. You should be connected in just a moment.
02:16
Test AI Agent - Michael Patterson
Sounds good. Thanks for your help.
02:19
Bank IVR
You're welcome, Michael. Thanks for calling, and an agent will be with you shortly.
Example report

What you get every Monday morning.

A full picture of how your IVR performed last week — and which scenarios moved.

Acme Telecom · Weekly Run #14

IVR Performance Report

Jun 16 — Jun 22, 2026 · 456 calls across 6 scenarios
Overall: passing
Avg. time to resolution
01:42
↓ 12%
Failure rate
8.4%
↓ 3pt
Avg. menu depth
3.1
± 0
Recognition accuracy
94%
↑ 1.2pt
ScenarioRunsPass rateAvg TTR7-day trendStatus
Claim filing84
96%
01:42 Pass
Billing inquiry120
91%
00:58 Pass
Appointment booking64
78%
02:18 Review
Password reset96
88%
01:10 Pass
Outage status52
100%
00:34 Pass
Transfer to human40
62%
03:05 Review
Certification program

IVRs that pass earn the badge customers trust.

When your IVR sustains a passing score across our full scenario suite for 30 consecutive days, you earn the Test Agent Lab Certified mark — proof your phone line meets real-world customer standards.

  • Verified continuously, not once a year
  • Public certificate page with run history
  • Embed badge on your support site and IVR welcome
Test Agent Lab Certified shield
Certificate
Acme Telecom · IVR Suite v3.2
Issued 2026-06-22 · Cert #TAL-0241
Team

Two founders, one obsession: making phone systems behave.

Nima Bahrehdar
Nima Bahrehdar
Co-founder & CEO
Ex-Amazon, Ex-McKinsey, Ex-Fidelity | AI Product Leader | MBA

Nima Bahrehdar is a product and AI strategy leader with over 20 years of experience building enterprise software and leading digital transformation initiatives across financial services, technology, and consulting. Throughout his career, he has helped organizations design, launch, and scale AI- and data-driven products at companies including Amazon, McKinsey, Fidelity Investments, and Citizens Bank. His work has focused on turning emerging technologies into practical solutions that improve customer experience, operational efficiency, and business outcomes.

As the founder of Test Agent Lab, Nima is focused on one of the biggest challenges in enterprise AI: ensuring AI agents are reliable before they reach customers. Test Agent Lab helps organizations automatically test conversational AI at scale using AI-powered customer simulators, objective evaluation frameworks, and detailed performance analytics.

Nima holds an MBA from Boston University and an AI & Machine Learning executive certificate from the Massachusetts Institute of Technology. He is passionate about building products that solve real customer problems and believes the future of AI will belong to organizations that treat quality, testing, and governance as core product capabilities—not afterthoughts.

Andre Wehe
Andre Wehe
Co-founder & CTO
Founder of nDash | AI Engineering Lead | Ph.D.

Andre Wehe is a software engineer, entrepreneur, and systems architect with more than 20 years of experience building large-scale distributed systems, SaaS platforms, and intelligent software products. Throughout his career, he has held technical leadership roles at Amazon Robotics and Evolv Technology, and as the technical co-founder of nDash, where he architected and built the company's cloud platform from the ground up.

Under Andre's technical leadership, nDash grew into a content marketing platform trusted by thousands of organizations, including Oracle, Visa, Kohler, Bitdefender, Zeta, and Epsilon. He has also led the development of mission-critical cloud services supporting Amazon's global fleet of more than one million autonomous mobile robots, as well as AI-driven enterprise products deployed in high-traffic environments.

As Technical Co-Founder of Test Agent Lab, Andre is building the next generation of quality assurance for conversational AI. He believes AI agents should be tested with the same rigor as traditional software, enabling enterprises to deploy voice and chat experiences with confidence through automated testing, intelligent evaluation, and continuous quality monitoring.

Andre holds a Ph.D. in Computer Engineering and Computer Science from Iowa State University and a German Diplom-Ingenieur (Dipl.-Ing.) in Electrical and Computer Engineering from the University of Applied Sciences Bielefeld, Germany.

Ready to grade your IVR?

Tell us about your phone system. We'll run a one-week pilot and send you the first report — on us.