BionicPickle wrote:911 Service works with this device.
Alarm phone service is not recommended, OOMA does not say why.
I have my internet modem, and OOMA on a battery-backup UPS. Then I have a non-powered phone (old cheapo) plugged into a home phone jack (using OOMA to provide the dial tone). This way, in case of power failure, I'm covered.
Now if only Comcast could keep the damn internet connection UP longer than a month without a phone call from me...
I can shed SOME light on this in one word: Liability.
POTS (Plain Old Telephone Service) is pretty simple and basic. And there's not a lot of dependency involved. Alarm companies will generically say that VoIP solutions are a bad idea because there are so many solutions and each has its own list of dependencies. The Magic Jack, for example, requires that you have the jack working, the computer working, the router/switch working, the modem working, all of it has power, and you internet service hasn't been interrupted. With a POTS line the dependency is you get a dial tone. So they will be generic and say not to use them because they can make no guarantee that the system will work. And if it doesn't, and someone get hurt, they could get sued.
The other side to that coin is that most companies will not say that one VoIP solution will work over another one because then Ooma, for example, is suing them.
It's easier to just say "no VoIP" and walk away.
The lawyers, and a complete lack of common sense on the part of customers, strikes again.