The storefront shop
Two to ten people. The owner cuts glass, quotes jobs, and answers the phone — usually all at once.
You don't need a switchboard. You need to never miss a call. An AI receptionist that answers when your hands are full — takes the message, books the appointment, answers the "are you open / do you do shower doors / how much is a tabletop" calls — and transcribes every conversation so nothing lives only in your memory. Quote requests become searchable text, not a note on a scrap of glass.
Have a website? The same assistant lives on it as chat. Don't have one? It works on your phone line alone — no website required.