Multilingual & Pronunciation
Multilingual Agents
- Retell supports multiple languages in a single agent
- Configure the primary language and allowed secondary languages
- Agent can detect the caller’s language and switch automatically
- Supported languages include English, Spanish, French, German, Portuguese, Japanese, Korean, Chinese, and many more
Speech Recognition
- Multiple ASR (Automatic Speech Recognition) providers available
- Choose based on accuracy, language support, and latency needs
- Some providers are better for specific accents or noisy environments
Pronunciation Tips
- Use phonetic spelling for unusual words in your prompt
- Example: “The company name is Acme (pronounced ACK-mee)”
- Use SSML tags for precise control over pronunciation
- Test pronunciation in the Playground before deploying
Handling Noise & Edge Cases
- Background noise — configure noise sensitivity settings
- Voicemail/IVR detection — agent can detect when it hits a voicemail or automated system
- Silence handling — configure how long to wait before prompting
- Backchanneling — agent says “mm-hmm”, “I see” to show it’s listening