The device is functioning okay and has all the claimed video preview etc. It is ringing okay in my wife's Apple phone. I use an Android phone and the ring never comes through. I have to repeatedly turn on the program and check whether someone is at my front door rather than ring in the phone when some one presses the door bell. You don't need such a costly doorbell just for having a chime in the house. A $15 device will do. Probably it is some issues with Android device software issues, but if you try to get the support you go round in circles in automated useless responses. I wish I had not bought it.