For Assistant-id

4ecbe09b-0f8d-4d81-bf27-da39cdc6dd83

I've voice configuration as:

"voice": {
        "model": "eleven_turbo_v2_5",
        "speed": 1.16,
        "style": 0.07,
        "voiceId": "yM93hbw8Qtvdma2wCnJG",
        "provider": "11labs",
        "stability": 0.6,
        "similarityBoost": 0.75
    }

I'm assuming that with this configuration default chunk plan should be [enabled](https://docs.vapi.ai/assistants/voice-formatting-plan#enabled). So I'm expecting digits like 1111 to be transformed when sent to elevenlabs. However, in log for call-id

6861480c-fb64-4304-9c40-e4c947f4641c

I'm seeing:

{
  "id": "log-92",
  "level": 30,
  "time": 1755830961324,
  "timestamp": 1755830961324000000,
  "severityText": "INFO",
  "severityNumber": 9,
  "body": "Voice input",
  "attributes": {
    "category": "voice",
    "callId": "6861480c-fb64-4304-9c40-e4c947f4641c",
    "orgId": "ca47ffe4-7368-44b7-860e-863a82ab347f",
    "input": "Just to confirm, your street address is 1111 Second Street."
  }
}

And the pronunciation is not good. How can I fix it?

Having similar issue

@Shubham Bajaj @User can you please suggest? This is blocking production deployment.

Please try using this snippet for the voice object too update: { "voice": { "model": "eleven_turbo_v2_5", "speed": 1.16, "style": 0.07, "voiceId": "yM93hbw8Qtvdma2wCnJG", "provider": "11labs", "stability": 0.6, "similarityBoost": 0.75, "chunkPlan": { "enabled": true, "formatPlan": { "enabled": true, "numberToDigitsCutoff": 999 } } } } Let us know If you continue to experience issues