Alex Zokaei
09/12/2025, 9:04 PMLordvickthor
09/13/2025, 1:52 AMChiranjeet Mishra
09/15/2025, 5:01 PMTransferPlan. The warm-transfer-experimental mode allows a transfer assistant to handle calls and manage the process using specified prompts.
1. **Configure the TransferPlan**: Set the mode to warm-transfer-experimental in the TransferPlan.
2. **Customize First Message**: Use transferAssistant.firstMessage to set what the assistant says initially.
3. **Duration and Timeout**: Define maxDurationSeconds and silenceTimeoutSeconds to control the call length and timeout behavior.
4. **Model and Prompts**: Specify the assistant model and configure prompts to manage interactions, detect voicemail, and ensure human presence.
For detailed configuration, you can check the full guide [here](https://docs.vapi.ai/calls/assistant-based-warm-transfer). If there are specific errors or issues you face during the setup, please provide additional details, and I can assist further.