Is there any way to play some hold time music so that the customer who is waiting doesnt disconnect since there would be silence while the agent is waiting for the data.

Vapi supports playing hold music during call transfers by specifying a

holdAudioUrl

in the

TransferPlan

(using the

warm-transfer-experimental

mode). While this is designed for transfers, it demonstrates how hold music can be configured. Example snippet for a transfer with hold music:

json
{
  "type": "transfer",
  "destination": {
    "transferPlan": {
      "mode": "warm-transfer-experimental",
      "holdAudioUrl": "https://your-hold-music-url.com/hold.mp3"
    }
  }
}

For playing hold music specifically while waiting for a tool to return data (outside of transfers), there is no direct method documented yet. See the [changelog for details](https://docs.vapi.ai/changelog/2025/5/6). Source: - [Changelog May 6, 2025](https://docs.vapi.ai/changelog/2025/5/6)

still need help on this

Hi baadshah2, Based on your request, playing hold music while waiting for a tool to return data isn't directly supported outside of the transfer context. However, within call transfers using

warm-transfer-experimental

mode, you can play hold music using the

holdAudioUrl

as shown in the example you provided. If you want to implement this in a context other than call transfers, you would need to explore other creative solutions, such as briefly transferring the call to a hold state with background music. For direct support in environments other than transfers, you may want to refer to future updates in the [Vapi changelog](https://docs.vapi.ai/changelog/2025/5/6) for new features. Feel free to ask if you need further guidance on implementing these steps or anything else!