I have Verizon wireless and Fios with gigabyte service and 2-ES3200 wifi extenders. Normal Wifi is great. Cell coverage in my house is at most 1 bar. My Wifi calls are horrible. The other person fades in and out and calls get dropped. The issue seems to happen more often when I move from room to room. Is there anything I can do, or would an LTE Network extender be better?