Hello, I uploaded an MP3 file as the first message, and everything works fine. However, I noticed an issue: the customer's voice is not recorded while the MP3 is playing.

Make sure you’re streaming audio from the listenUrl WebSocket and don’t mute the assistant, as this could suppress customer audio during playback..

Thank you for your response. I’m not using listenUrl or controlUrl. I’ve set up the assistant directly in Vapi and imported the phone number from Twilio using the Account SID and Token. Vapi handles everything, and I simply review the call recordings there after each call. Does this mean there's a misconfiguration on my end in Vapi, or could it be a system bug? I do see the calls appear in Twilio, but there are no recordings there—so it seems Vapi is initiating Twilio calls without enabling recording.

Ensure call recording is enabled in your Vapi phone settings and HIPAA is off, as vapi may be initiating Twilio calls without enabling Twilio’s recording features or callbacks..