OTIS Elevator was organized into four divisions globally and generated over $2 billion in revenue as of 1985. It introduced automated microprocessor-based elevators in the 1970s, increasing its market share. In the early 1980s, OTIS investigated using IT to establish a centralized customer service system called OTISLINE to address issues like variable callback times. OTISLINE linked to OTIS's maintenance database to allow dispatchers to respond to customers within 60 seconds. By 1985, 11 districts were using OTISLINE, receiving over 43,000 calls per average weekday.