### Answer
I don't have information about the specific settings used for the appointment scheduling agent demo on the Retell AI website based on the available sources.
However, I can share that appointment scheduling is a common use case for AI voice agents [(1) ](
) , and Retell AI supports features like dynamic variables that can personalize agent interactions [(2) ](
) .
For the best guidance on replicating demo-quality agents, I recommend:
* Visit [Documentation](
)
* Visit [Hire certified Retell partner](
)
* Ask questions on the Retell AI community channels
Would you like a general answer based on my knowledge of best practices for creating high-quality voice agents instead?