Description [Overview] This is an application that you can use in conjunction with video intercom made by Panasonic. You can answer to visitors by using the smartphone in the house. If the electric lock is connected, you can also unlock it. [Preparation before use] In order to use this application, you must have a Wi-Fi router and a smart phone compatible video intercom made by Panasonic. - Compatible Products VL-SVN511 [Major features] - You can answer to visitors by using smartphone! - Y