Who decides which calls are "real"? If I call to report erratic driving but the officers never catch the person, is it "real"? What if I report gunfire but they never find the shooter or a dead body? We WANT people to use 911, the answer to fake calls that overwhelm the system is better education, punishment for fake calls, and possibly more funding. Fake calls are not a function of the number of 911 operators or first responders, so you should be able to fund your way out of the problem in the short term if it is really that bad.
You can't necessarily know that a legitimate call is legitimate, but you can know that some calls are fake, though not necessarily until after you've checked out the situation, hence the last sentence my previous post: you may have to fund your way out of the problem until your enhanced deterrent (increased punishment, whatever) can have an impact.
