5G new call APP based on Internet of Things and video call system thereof

The invention discloses a 5G new call APP based on Internet of Things and a video call system thereof, and belongs to the technical field of video call systems, comprising an address book reading module, an address book management module, a call management module and a call interaction module, the conversation module comprises a conversation floating window opening module, a conversation background switching module, a screen sharing module and a whiteboard opening module. According to the invention, the call module and the call floating window opening module are arranged to open the floating window in the call, the floating window is pulled up in a mode of supporting call signaling triggering in the process of the native call, the APP can be rapidly accessed through the floating window to carry out call interaction, and the screen sharing module enables the user to carry out screen sharing in the call. After sharing, other members in the call can see the mobile phone screen of the sharer, other members in the