Had Magic Jack for many years at home. I got one for my mom a couple of years ago, but I heard that now she is having trouble. I don't know the issue since I have not been there. I was told that the tech support was not helpful.

The time is always EST. The caller ID always makes my phone and answering machine time wrong (I use an answering machine still). A caller ID name would be nice to have. Early on had trouble calling some pager numbers (Yes, I said pager). I don't know if it change

I would not use it for any alarm system. Just get the alarm CO to add a cellular communicator. All the ATAs seem to be less reliable for faxing than a POTS line. For healthcare, we still order POTS for fax machines.