Enabling Language Detection

Allow your AI agent to automatically detect and respond in the caller's language.

Overview

Language Detection enables your AI agent to:

  • Identify the language a caller is speaking
  • Automatically switch to respond in that language
  • Use the appropriate voice for each language This creates a seamless experience for international callers who may speak different languages.

Prerequisites

Before enabling Language Detection:

  • You must have additional languages configured
  • Each enabled language must have a voice assigned

Enabling Language Detection

  1. Navigate to Agent Settings > Voice & Languages
  2. Click Manage Languages to open the configuration sheet
  3. Locate the Language Detection toggle
  4. Turn it ON
  5. Click Save Changes

How It Works

When Language Detection is enabled:

  1. Caller speaks - Your AI listens to the caller's first utterances
  2. Language identified - The system detects which language is being spoken
  3. Voice switches - If the detected language is one of your enabled languages, the AI switches to that language's assigned voice
  4. Conversation continues - The AI responds in the detected language

    💡 Note: Language detection works best when callers speak clearly in their language from the start of the call. Mixed-language conversations may not always trigger a switch.

Supported Languages

Language detection works for any language you have enabled with a voice assignment. Common supported languages include:

  • English (various accents)
  • Spanish
  • French
  • German
  • Japanese
  • Chinese (Mandarin)
  • Hindi
  • Arabic
  • And more

When to Use Language Detection

Enable it if:

  • You serve an international customer base

  • Callers speak various languages

  • You want to provide localized experiences automatically Consider disabling if:

  • All your callers speak the same language

  • You prefer consistent single-language responses

  • Your business operates in only one region

Troubleshooting

Language not being detected

  • Ensure the language is enabled in your configuration
  • Verify a voice is assigned to that language
  • Caller may be speaking too briefly or unclearly

Wrong language detected

  • Some languages sound similar at the start of conversation
  • The caller may be speaking a dialect or accent variation
  • Consider whether additional context (like phone number region) might help
  • Adding Additional Languages
  • Setting Your Primary Language
  • Understanding Multi-Language Voice Support