Smart, Internet-connected home intercom. Nucleus is a smart, Internet-connected intercom that lets you instantly connect with audio or video to anyone on the same system – whether they are in the next room or the next country. One tap and you can call your spouse for dinner, check on your baby, or have a face-to-face conversation with your aging parent. Use our iOS or Android app to turn your phone into a remote intercom unit. Call the kids to the car with one tap.