### Answer Based on the available sources, there isn't a direct option to play a pre-recorded WAV file before the agent interaction begins. [(1) ]() However, there are a couple of workarounds to achieve a similar result: 1. Use a static phrase as the first message You can configure the agent's begin message to include a disclaimer or recorded-style message. One community member confirmed: "You can have it as a static phrase before the introduction." [(2) ]() 2. Use

begin_message_delay_ms

This parameter delays the agent's first message by a specified amount (up to 5000ms) , giving users time to prepare. [(1) ]()

json
"begin_message_delay_ms": 1000

What's not available: The API parameters for creating a voice agent don't include an option to inject a pre-recorded audio file (like a WAV) before the conversation starts. , [(3) ]() Potential alternatives to explore: - Have your telephony provider play the recorded message before connecting to the Retell agent - Configure the agent's first message to speak the required disclaimer text using TTS If this is a critical requirement for your client, you may want to reach out for additional support options.

​ To learn more, see the sources I considered: [[1] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) [[2] Disclaimer call registered before call](https://discord.com/channels/1186424376300679209/1341718625941459014) [[3] Get Voice Agent](https://docs.retellai.com/api-references/get-agent) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.