SBX customer hears digital sounds or squawks and or squeals when answering the phone. I have witnessed the digital sound. It seems random. I called 4 times and it was fine. I called again and I heard gibberish. I thought it might be the caller id, but first I waited two rings and still received the gibberish. And then I watched the LCD and it provided the caller id when the call rang the first time. I went to timers for system and CO. but I saw too many choices. I called tech, but of course they have never heard of the problem. I am behind a FIOS switch from Verizon. I haven't broken out the butt set yet but unless someone has some ideas I will go back to the site and do so.