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What is Dynamic Language Switching?

Dynamic language switching allows your agent to detect and adapt to the language spoken by the caller, switching languages mid-conversation when needed.

How It Works

1

Caller Speaks

The caller speaks in their preferred language
2

Language Detected

The speech-to-text system detects the language
3

Agent Switches

The agent responds in the detected language
4

Maintains Language

The agent continues in that language for the rest of the call

Configuration

Add language switching instructions to your agent prompt:

Supported Language Pairs

English + Spanish

English + French

English + Hindi

English + Arabic

English + Arabic + Hindi (Trilingual)

For markets serving English, Arabic, and Hindi speakers (Middle East + India):
Limit dynamic switching to 2-3 languages maximum. Supporting too many languages may reduce accuracy. For trilingual setup (English + Arabic + Hindi), ensure you have thoroughly tested all combinations.

Example: Bilingual Agent

Here’s a complete example for an English-Spanish agent:

Testing Language Switching

Test Scenarios

  1. English caller: Start in English, remain in English
  2. Spanish caller: Start in English, switch to Spanish after first response
  3. Mixed caller: Handle code-switching gracefully

Validation Checklist

  • ✓ Agent detects language correctly
  • ✓ Switch happens immediately
  • ✓ No language mixing in responses
  • ✓ Proper grammar in both languages
  • ✓ Cultural context is appropriate

Best Practices

Clear Instructions

Make language rules explicit in your prompt:

Provide Examples

Include example conversations in both languages:

Handle Edge Cases


Limitations

Language Pair Limit

  • Support 2-3 languages maximum per agent
  • More languages reduce accuracy
  • Create separate agents for different language pairs

Detection Accuracy

  • First few words may be misdetected
  • Accents can affect detection
  • Background noise impacts accuracy

Context Preservation

  • Context is maintained across language switches
  • Metadata variables work in all languages
  • Call history is preserved

Next Steps

Supported Languages

View all available languages

Writing Prompts

More prompt writing tips