The overly complicated, counterintuitive, over-rated phone with the indecipherable set-up instructions make it useful only as a paperweight. Try to use it like a normal phone and all you will get is frustration and failure. Look up the instructions and all you will get is angry and confused. The phone actually seems to be designed to prevent ease-of-use.
Unless you press the correct button, for the correct amount of time, then immediately press the next button (which is not specified) followed by typing in a confusing set of numbers, followed by pressing the 'up' key twice, then the 'down' key once, then then 'mode' key with just the right amount of pressure, the stupid phone will not work. I'm exaggerating, but not by much. I've had this phone two years and have gotten it to work maybe four times -- then it went on strike.
I have never encountered a more-difficult-to-use phone in my life, including when I was operating communication equipment for the Navy. The person who designed this phone should never be allowed to design anything else for the rest of his life. I HATE this expensive, over-complicated phone. It is exactly the opposite of what any senior who wants an easy-to-use, dependable phone is looking for. I can't say enough bad things about it.