cellphone extras

Somebody emailed me this. I never knew about them before. Do you? I've tried #1 and #3. They work. When I tried #4 I got a messsage saying that the number is not applicable. Maybe because my phone is an old one. What I'm interested to know is whether #2 really works. The hubby told me not to experiment but to do it only if there's a real emergency.

THINGS YOU NEVER KNEW YOUR CELLPHONE COULD DO

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