We will be away for two days and one night and my father will be left alone in the house. So I am plugging in my Nettalk to make sure that my father will hear the phone ring in case we call. Also, so he can use it if he wants to.
This is what's good about having Nettalk, you can unplug it and just forward the call to your celphone. However, you need to have unlimited calling so you won't have to worry about over using your calling data usage.
Me, my husband and my two kids have our own celphone so I realized that paying more than $50/month for home phone doesn't make any sense. With Nettalk, I only have to pay $40/year.