We have had Verizon for about 15 years and the service at our home in Orofino ID was really good. In the past 4-5 years it has gotten so bad that we cannot make or receive calls without them being dropped. We have installed an extender and have seen no improvement. We both have i-Phone 6S - 64 GB phones. We are ready to change carriers or just go to a land line. HELP!!