One of the few companies that I worked for that was serious about software testing. More man-hours on testing than development. Many more. The other serious one was S&C Electric that made High Voltage Switch Gear.

PC software is the worst. "Looks like it works, push it out the door. All software has bugs."  Cell phone backbone software is in between." I still remember a hard guideline from a company that shall remain nameless: "Hold onto the line as long as the billing data isn't lost. The last thing to lose is the billing data."