Ask HN: Improving Voicemail

I have been calling a lot of dental offices lately to schedule an appointment for my daughter and realized that most of them just leave me hanging with a "leave a message and pray that we get back to you" mode.

I wonder if there are any meaningful ways to improve this experience? I guess having a "bot" answer my questions would be one way but beyond that could it provide some smart knowledge from just transcribing my voicemail and understanding the request and updating the CRM or something.

PS: Just a Saturday evening thought.