@Rafał (voicetta.com) I'm sorry to hear that you're experiencing issues with the outbound call. It seems like there might be an unexpected property in the call setup. To assist you better, could you please provide me with more details about the call attempt? Specifically, I need to know the exact request you made that resulted in this error, so I can help you troubleshoot the issue effectively.

You can continue this conversation by mentioning me in the message.

Got it. Tagging @User for additional help.