So you've found the perfect phone system.
People are on the road, or in meetings, or on another line.
So voice mail has become a ubiquitous, indispensable, sometimes annoying fact of life. And a business that can't be sure it's getting its messages intact may not be a business for long. Those worked, but barely. Tapes broke or skipped and required rewinding and fast-forwarding. These days, digital technology makes the tape obsolete.