Both answer your phone. They don't do it the same way, and they're not solving the same problem.
For a contracting business fielding a steady stream of calls, the choice usually isn't “should someone answer the phone.” It's whether that someone is a person you hire, or a system you turn on.
One person, during working hours, on one call at a time. Everything outside that window — evenings, weekends, lunch, sick days, the two weeks they're on vacation — reverts back to voicemail or whoever happens to be free. Training takes time, and turnover means doing it again.
Every call, at any hour, including the two that come in at the same time. No onboarding period, no vacation coverage to arrange, no ramp-up while a new hire learns your business. It shows up exactly the same on a Tuesday afternoon as it does at 9pm on a Saturday.
A full-time receptionist means a salary, benefits, training time, and covering their absences — for one line of coverage during business hours. An AI answering service is a flat monthly cost with no vacation days, no sick days, and no ramp-up, covering every hour the phone can ring, not just the ones between 9 and 5.
Most contractors don't have the call volume, or the budget, to justify a full-time hire whose whole job is the phone. But every call that goes unanswered still costs a shot at the job — regardless of whether the business can afford to fix it the traditional way. That's the gap an AI answering service like Piper is built to close: full coverage, without the overhead of a full-time seat.