You know, I do get a personal call from my dentist, carpet cleaner, and my kids' doctor before an appointment. I call my customers before meeting with them too.
But what a waste of time for all of us right? Why not send out this automated voice mail message instead:
"Don't be late! I don't have time to call you, but you better have time to meet and PAY me."
Nice.
I think you'll be able to sell it, but it seems like a DIS-service to me.
Also, NOTHING pisses my wife off more than a voice mail from an automated system.
Just yesterday she got one from a local service we donate clothes to (pretty sure it was them again), and she let out a throaty roar in the kitchen because she hates them so much, she wants a different service now.