Test AI Voice Agents Across Every Call
Deploy autonomous evaluators that test your audio chatbots, inbound phone agents, and outbound dialers, scoring conversations on 9 quality metrics and calls on 30+ telephony metrics, then handing you a clear go-live verdict.
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Test Every Voice Channel. One Platform.
Voice Agent Testing
Evaluate audio chatbot conversations against the same 9 quality metrics as chat, conducted via generated WAV audio instead of text across real multi-turn exchanges.
9 Quality Metrics
Score bias, hallucination, completeness, context awareness, response quality, conversation flow, user satisfaction, and file handling on every turn.
Same Workflow, WAV Audio
Ingest PDFs and text or connect Confluence, Jira, and GitHub, auto-generate scenarios, then test via generated WAV audio with real-time streaming.
Go-Live Assessment
Get a Green, Yellow, or Red production-readiness verdict with customizable 0-100% pass/fail thresholds.
From the First Word to Production
Pre- and Post-Evaluation, End to End
Simulate live inbound and outbound test calls before launch, then batch-analyze production MP3/WAV recordings with the same metrics, so quality holds from staging to scale.
Total Quality Coverage for Voice Agents
Score audio conversations across 9 quality metrics, and telephony calls across 30+ flow, accuracy, audio, and speech-to-text metrics.
UX and Business Ops Metrics
Track CSAT and detected sentiment, containment rate, early-termination rate, and AI-to-human handoff trends across every call.
Go-Live Assessment by Confidence
Get a Green, Yellow, or Red verdict from four weighted dimensions, with confidence levels scaled to your evaluation volume.
Inside Voice Agent Testing on TestMu AI
9 QUALITY METRICS
Score Every Voice Conversation on 9 Quality Metrics
Voice agents are evaluated on the same nine metrics as chat, scored from generated WAV audio across multi-turn exchanges, with customizable 0-100% pass/fail thresholds.
Try for free
- Bias, hallucination, and completeness checks on every response
- Context awareness, response quality, and natural conversation flow
- User satisfaction (CSAT), file handling, and file generation accuracy
PRE & POST EVALUATION
Test Live Calls Before Launch, Production Calls After
Pre-evaluation simulates live inbound and outbound customer traffic; post-evaluation batch-analyzes real recordings, so quality holds from staging all the way to scale.
Try for free- Live test calls that simulate real inbound and outbound traffic
- Passive monitoring mode and a dedicated outbound reservation pool
- Batch upload of MP3/WAV recordings with speaker-identified playback and DTMF detection
SCENARIO & VOICE CONFIGURATION
Configure Voices, Accents, and Real Call Conditions
Shape each test call to mirror the real world. Choose a voice, add background noise, and control call flow right down to response timing and the first speaker.
Try for free- Voice library with multiple accents and animated waveform previews
- 15 background-noise presets (cafe, factory, rain, radio interference) for acoustic resilience
- Masked numbers across 20+ country codes, with max-duration (60-1800s) and response-timing (0.5-5.0s) controls
AUDIO, STT & ISSUE DETECTION
Catch Audio, Transcription, and Flow Failures Automatically
Beyond pass and fail, the platform surfaces exactly why a call broke, from patchy audio to incorrect speech-to-text, with precise mismatch logging.
Start Testing Your Voice Agent- Average pitch tracker (85-300 Hz), Voice Quality Index (0-5), and signal-to-noise ratio
- Speech-to-text accuracy mapping with precise mismatch example logging
- Automated issue tags: latency, interruption handling, running in loop, no response, and more
Built on Universal Testing Foundations
Project & Environment Management
Create agents, manage test environments, and scope variables with bulk creation support.
Test Profiles & Personas
Inject reusable key-value test data (string, JSON, boolean) and use a pre-built or custom persona library for targeted scenarios.
Validation Criteria
Define custom, evidence-based pass/fail rules per scenario with High/Medium/Low confidence tracking.
Security & Infrastructure
Execute via HyperExecute with optional secure tunnels for firewall-restricted voice and telephony stacks.
Scheduling Engine
Automate call runs using preset frequencies or full custom cron expressions with IANA timezone support.
Go-Live Assessment
Get a Green, Yellow, or Red verdict from four weighted dimensions with AI-powered failure-pattern analysis and prioritized action items.
Success Stories of TestMu AI (Formerly LambdaTest)
50%
reduction in test execution time
“HyperExecute is a highly reliable test execution platform and has excellent customer support.”
Sagar Uday Kumar
Sr. Engineering Manager
Some love from our customers!
As Best Egg expanded its product offerings and entered new markets, we knew our old testing infrastructure couldn’t keep up.
With support from Tenny Agustin, our Engineering Operations Lead, we modernized our approach with
TestMu AI
Best Egg
best-egg
Excited to Share My Learning Journey with Kane AI & Lambda Tool!
I'm pleased to announce that I've recently gained hands-on experience exploring Kane AI through the Lambda Tool and it’s been a fantastic journey of upskilling!
KaneAI
Suryateja Goud
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See how is #Futureready to enable blazing-fast test orchestration seamlessly integrated with organizations' existing CI/CD platforms, using #Microsoft Azure.
TestMu AI
Microsoft India
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