Thank you gentlemen. I have a couple of the small cheap amps, and they are a lot of trouble but usable in certain spaces. I reasoned the phone or phones are always with us and would work in other places when the larger Amp is not with us. I was trained in electronics and early computers and programing in 1965-6 [yes, I am old and some days my brain works better than others] and I am a tinkering fool who has never learned anything about cell phones. We are out of Mn. for Jan-Feb ln Tx and the Fla. keys, so I will have time to learn. Sweetie has a Samsung and I have a discarded Pixel 5. I am also pursuing other avenues, of course. Thanks again Gene