Overview
Voicemail Detection is an intelligent feature that automatically identifies when a call reaches a voicemail system instead of a live person. When enabled, the system can detect voicemail scenarios and handle them appropriately by playing a custom end message before terminating the call. This feature is particularly useful for outbound calling scenarios where you want to ensure your AI agent responds appropriately when encountering voicemail systems.How Voicemail Detection Works
Detection Mechanism
The voicemail detection system uses advanced audio analysis to identify voicemail patterns by analyzing:- Audio Patterns: Recognizes common voicemail greeting structures and tones
- Speech Characteristics: Detects the typical cadence and flow of automated voicemail messages
- Silence Detection: Identifies the characteristic pause/beep pattern that indicates voicemail recording has begun
- Voice Detection Integration: Works in conjunction with the voice detection system to ensure accurate timing
Detection Process
Configuration
Enabling Voicemail Detection
To enable voicemail detection for your agent:- Navigate to your agent’s configuration page
- Scroll to the Voice Configuration section
- Toggle “Voicemail Detection” to enabled
- Configure your custom end text message
If your voice detection release time is less than 0.6 seconds, voicemail detection may not work as expected.
The system will warn you if this configuration issue is detected.
Related Features
- Voice Detection - Configure voice detection parameters
- Call Logs - Monitor voicemail detection in call logs
- Webhooks - Get notified when voicemail is detected
- Realtime Events - Track voicemail events in real-time

