Originally Posted by REDREAD
Because if you did that, umpires would ignore the beep and call whatever the felt like. Seriously, these umps have huge egos (no disputing that).. that's why every ump has his own zone, some ump change the zone midgame to "teach the pitcher a lesson", etc. To implement your suggestion, there would need to be a shocking device in the ear piece to give them a good zap when they contradicted the computer
I could go for that. Or the league, which also hears the beep, could go to the ump later and say, "Dude, you ignored 20 beeps that game. What's the deal?"