I've used one for a couple of years now. Generally it works very well although occasionally the sounds is a little garbled or a syllable may be dropped or I'll hear an echo. On rare occasion I'll have to call the party again and get a cleaner connection. I have Fios for internet connectivity. A relative in Boston has a DSL connection and there's more garbling or missing sounds than on my line. Then again, a friend in Columbia, MD has Comcast cable for his internet, and often calls that he places using the MagicJack are kind of garbled (sometimes sounds like he's under water).
I believe that if you are doing much downloading or uploading during a conversation, that will will also degrade the voice quality. As far as 911 is concerned, yes you can place 911 calls, but I don't believe that the 911 folks can trace the call to your specific address. And of course (1) your computer has to be on at the time, and (2) you need electric power functioning in the house. For international calls, you have to open a prepaid account, to which you can add money as needed. But the calls are very cheap (Spain and England are about 2 cents/minute) and I've found them crystal clear -- even better than domestic calls. ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
