My agent is set to speak Italian, but sometime It says: "how can I help you?" In English. I prompted to speak only italian but nothing changed

Hi there! 👋 I understand your frustration when your Italian-speaking agent suddenly switches to English with phrases like "how can I help you?". Based on the information I've found, there are several reasons why this might be happening and several solutions you can try: ### Why This Happens According to the [documentation](https://docs.vapi.ai/customization/multilingual), language switching can occur due to: 1. Configuration issues - The language setting might be incorrectly configured or using a deprecated method 2. Voice model limitations - Some voice models may have unexpected behavior or "hiccups" 3. Chunk processing issues - Problems with text processing for non-English languages 4. Smart endpointing - This feature only works for English and can cause issues with other languages ### How to Fix It Here are specific steps to ensure your agent speaks only Italian: 1. **Select the right voice ID**: Choose a voice that natively supports Italian from your provider. For example, if using Azure, you'd configure something like:

json
   {
     "voice": {
       "provider": "azure",
       "voiceId": "[Italian-voice-ID]"
     }
   }

2. **Enable chunk processing**: According to [troubleshooting information](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1343543475383046185), keep

chunkPlan.enabled

set to

true

for non-English languages:

json
   {
     "voice": {
       "chunkPlan": {
         "enabled": true,
         "minCharacters": 30,
         "punctuationBoundaries": [".", "!", "?", ";"]
       }
     }
   }

3. **Disable smart endpointing**: As mentioned in [support discussions](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1334385998423130174), set

smartEndpointingEnabled

to

false

since it only works for English.

Punctuation Boundary off Backchanneling off Voice from my 11labs that works fine with other tools. I don't know what is wrong https://cdn.discordapp.com/attachments/1361406816235425842/1361418373233377300/rn_image_picker_lib_temp_29d40c4f-2b92-4232-beeb-b8dce3ba68ed.jpg?ex=67feaf2a&is=67fd5daa&hm=c5c03667a4ac0d2ce152202331e80d777452b3d28526f1fcdee3f7ef489abd79&

possibly due to misconfigured voice, transcription, or LLM language settings.