What is the Engine Tab?
The Engine Tab controls the core performance settings of your voice AI agent. Fine-tune transcription accuracy, interruption behavior, response timing, and user presence detection for optimal conversation quality.
Engine Tab on Bolna Playground
Configuration Options
Transcription & Interruptions
Control how speech is captured and processed during conversations.
Transcription & Interruptions Settings
Generate Precise Transcript
Enable for higher accuracy transcription. Essential for compliance and call analytics.
Interruption Threshold
Number of words to wait before considering user input as an interruption.
Stopwords like “Stop”, “Wait”, “Hold On” will always pause the agent immediately, regardless of the interruption threshold.
Response Latency
Configure how quickly your agent responds to user input.
Response Latency Configuration
User Online Detection
Detect when users go silent and automatically re-engage them.
User Online Detection Settings
1
Enable Detection
Toggle User Online Detection to check if the user is still on the call.
2
Set the Message
Customize the prompt (e.g., “Hey, are you still there?”) with multi-language support.
3
Configure Timing
Set Invoke message after (seconds) to control when the check triggers.
Best Practices
Start with Defaults
Use default settings initially and adjust based on real call feedback
Test Extensively
Make test calls to experience the timing and interruption handling
Consider Use Case
Customer support may need longer pauses; sales may prefer faster responses
Monitor Analytics
Review call recordings to identify timing issues
Next Steps
Call Tab
Configure telephony and call features
Audio Tab
Set up voice and transcription providers
LLM Tab
Configure language model settings
Call History
Review call logs and recordings