Saturday-night emergency call
Sarah's water heater starts leaking at 10 PM Saturday. She Googles plumbers, your number comes up, she calls.
Mia answers in your business name on the first ring. Sarah says her tank is leaking. Mia hears the emergency keyword, pulls Sarah's history (you did her toilet install in March), and warm-routes the call to your on-call cell within 30 seconds. You're talking to Sarah while she's still in the laundry room.
"Thanks for calling Acme Plumbing, this is Mia. Sounds like you've got a leaking tank, Sarah. I'm going to get our on-call tech on the line with you right now. Hold for just a second."