
Phone Calling Agent: Evaluate IVR and Outbound Calls
Deploy AI evaluators to test inbound IVR systems and outbound calling agents. Score every call across FCR, CSAT, STT accuracy, containment rate, and 30+ quality metrics.

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Deep Dive into Phone Calling Agent Testing
Inbound Phone Agent
Test IVR Systems and Inbound Support Bots with Real Phone Calls
Evaluate every IVR flow and inbound support interaction with AI-powered call simulation at scale.
What gets measured per call?
Outbound Phone Agent
Evaluate Outbound Sales Dialers and Proactive Calling Agents
Evaluate outbound dialers with dedicated number pools, passive monitoring, and noise simulation.
- Reserve dedicated outbound number pools with country code selection.
- Monitor live outbound calls without disrupting the conversation.
- Configure voice selection, response timing, and 15 noise presets.
Scenario Generation
Auto-Generate Phone Agent Test Scenarios from Your Docs
Upload call scripts or connect JIRA and Confluence to auto-generate 60-100+ test scenarios.
- Upload PDFs, call scripts, or IVR flow documents as knowledge sources.
- Auto-generate scenarios with validation criteria and Postman imports.
- Run real-time multi-turn interactions in the playground.
Complete Phone Calling Agent Coverage
Confidence by Evaluation Volume
HIGH (100+ evaluations), MEDIUM (50-99), LOW (20-49), VERY LOW (below 20). Confidence calibrates against evaluation volume.

30+ Call Quality Metrics
FCR, CSAT, containment rate, STT accuracy, intent recognition, and voice quality scored per call across every inbound and outbound test.

Go-Live Assessment for Phone Agents
Each run scores Functional Completeness, Quality Standards, Risk Profile, and Operational Readiness, each weighted at 25%.

Production Recording Analysis
Upload production call recordings for batch analysis using the same evaluation metrics across FCR, CSAT, and STT accuracy.

Built for Every Layer of Phone Agent QA
Live Call Monitoring
Track real-time call duration, speaker-identified transcripts, and DTMF keypress detection across every inbound test call.
Number Pool Management
Reserve dedicated outbound number pools with country code selection for isolated, realistic outbound call testing.
Passive Listening Mode
Monitor live outbound agent calls for QA without disrupting the conversation or alerting the phone agent.
Voice & Noise Simulation
Configure voice selection, response timing, and 15 background noise presets to simulate real-world call conditions.
Scheduling Engine
Automate phone agent test runs using preset frequencies or full custom cron expressions with IANA timezone support.
Observability and Reporting
Monitor call quality across test runs with unified dashboards, exportable reports, and real-time metric trends.
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
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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!
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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.
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Microsoft India
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