By law they can not listen in or record unless they notify you at the beginning of the phone call. The only other way is for them to have a loud beep for you to hear every few seconds. This lets you know you are being recorded. Phone conversations are different from 2 people talking in person. Than, only one person has to know. I wouldn't be concerned with it. However your text are a different story. I would read their Terms of use very carefully to make sure that there is nothing in there about phone call "eves dropping" for quality control. But again, they have to let you know about it which could be in there.