The 6:40am callout
A commercial client's walk-in freezer fails before opening. They call. Your techs are already driving and nobody is at a desk yet.
It answers, recognizes a commercial refrigeration emergency, pulls the site's service history, and texts your on-call tech the address and the last two repairs.
The tech is rerouted before your office manager finishes her coffee. The client never heard a voicemail greeting.