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Does anyone know if the "Magic Jack" advertised on TV really works? Since it is plugged in to your PC/Laptop, can it cause any damage to your computer? Thanks!

My wife and I are going thru a divorce and our cell phones are still on the same bill. My daughter has informed me that she is reading her text messages online and I assume she can do the same with my text messages....

When faxing a document, is there a way that anyone but the receiver can see what was sent.? Is there a copy in the fax machine itself that can be pulled up?

How can i change tone and puls?