Er...um..guys? I think the IED thing was taken out of context. I was trying to show that there was a function for these devices outside of pranksters and cell-phone ragers. I think most are made in Taiwan and Israel. The primary market was Israel Defense Forces in jamming IEDs and the secondary market opened up recently.
I think so far, it's mostly hospitals, churches, restaurants and theaters for obvious reasons because there is a demand for cell phone free zone.
As for why people find them annoying? Well, I think it's mostly the "overly loud" and inconsiderate users. I.e. - talking on your phone in line and holding up the line cause you put your "talk to the hand" up at the cashier person (it's just rude).
People tend to talk louder on a cell ohone than in conversation for a technical reason: They cannot hear themselves throught the earpiece. In land phones, a second signal or echo is bounced back throught the earpiece giving it a more natural sound. Not so in cell phones (something to do with signal or bandwith or something)
People talking inconspiciously or "not loudly" are not derided or noticed for that matter. I don't care if it's a cell phone: shouting in a check out line, hospital, theater etc is just plain rude whether you're on a cell phone or not. The extra reason why people are annoyed with cell phones is the rudeness accompanying it. Unless you're a doctor or whatever, please turn off your phone when we are having a conversation together. Same in school. Why must you talk (on phone or to your neighbor) while the teacher is talking?
The worst is when I went to visit my G'ma in the hospital. She was hooked up to a lot of machines and stuff. Outside the room was a big sign, "No cell phone use" and an explanation why (it interferes with the equipment). well, I heard some guy yelling in the hallway and when I poked my head out there, I saw this guy yelling into his cellphone, right under the sign (WTF!)! So I said, "Hey" and pointed at the sign and he glared at me and gave me the finger. I rang for the nurse and was about to tell her that a man was found dead in the hallway but some doctor yelled at him and the dude took off. But that's messed up and also why people dislike some cell phone
users.
Oh, the good news, my grandma made a speedy recovery and is fine.
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