Concerning the wireless home phone service, the answers to the following questions seem obvious but none the less (since FAQs are not clear on the subject)...1. During electric outages, does the hub and service still works (is there a battery pack we can purchase to address the eventuality of an electric outage)? 2. Can we put multiple wired hanseds with a splitter (the FAQs explains 1 wired phone or 2 DECT handsets). It doesn't address the possibility of using a phone line splitter? 3. How can we test our home signal quality before purchasing the hub and the service?