"Better late than never," with that said, welcome to the forum. The monitors are wonderful; as you have already found out; and the Forum Community feels privileged to also give any information they can to new members; or old ones too.
Charles is really a good guy; one that you definitely can trust regarding your phone needs. He also, I hope you have found out, is a wonderful story teller about his Island..."Paradise," aka "One Happy Island." I, for one, have thoroughly enjoyed his stories and I am sure you will also.
Have a wonderful trip. You will have the experience of a lifetime and want to return time-and-time again.