Other than being able to use home phones through the cellular network, how is this different from just using a cellphone?
I suppose if you wanted to limit your exposure to SAR from a hand held CDMA handset for voice calls, this may be desirable. Also, I was originally planning to use a VZW feature phone and port my home number to it THEN use it BT linked to my new cordless home phone system. This looks like a better, cleaner solution since I don't want an extra handset kicking around that might get misplaced, taken by mistake or forget to recharge the battery.
It's made by Huawei; haven't found the model number yet. I would prefer to find a used one someplace rather than shell out $120 to VZW for a no contract unit.