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Analyze completed calls in detail. The Call Inspector shows transcripts, audio recordings, timeline events, LLM prompts/responses, tool executions, and latency breakdowns for every conversation. What you’ll learn: Accessing the inspector, understanding sections, and navigating to detailed analysis.
Screenshots may differ from current UI version.

Access the Call Inspector

  1. Go to Calls in the sidebar
  2. Select the Past Calls tab
  3. Find your call in the list
  4. Click the Inspect button
  5. Inspector opens in a new tab
The Call Inspector is only available for completed calls. Calls in Pending, Queued, or Running status don’t have inspector data until they complete.

Inspector sections


Call overview

The inspector header displays key call metadata at a glance.

Header information

Call type values

Timestamps

Custom data

Any additionalData passed during call creation appears as formatted JSON:

Quick analysis

Check conversation quality

  1. Open the Transcript section
  2. Scan for red flags: repetition, off-topic responses, user frustration
  3. Listen to audio for voice quality issues
  4. Review LLM logs if responses seem wrong
Common Issues

Check performance

  1. Open the Timeline section
  2. Look at latency breakdown: STT, LLM, TTS
  3. Identify the slowest component
  4. Compare against targets (under 2s total)
Common Issues

Debug failed calls

  1. Check Status in the header
  2. Look for error messages in system events
  3. Review LLM logs for API errors
  4. Check tool executions for failures
Common Issues

Best practices

During testing

  • Review 5-10 test calls before enabling an agent for production
  • Verify all conversation paths work as expected
  • Check that tool executions succeed
  • Confirm latencies are within acceptable ranges

In production

  • Sample 5-10% of calls randomly for quality review
  • Review all failed calls within 24 hours
  • Track performance trends over time
  • Monitor tool success rates

Data privacy

  • Redact PII before sharing transcripts externally
  • Comply with call recording consent laws in your jurisdiction
  • Implement data retention policies
  • Secure access to recordings with proper authentication

What’s next

Call History

View and filter past calls

Troubleshooting

Common issues and solutions

Common Issues

Solutions for frequent problems

Concurrency Monitoring

Monitor active calls and capacity