C319 series is an Android SIP-based with a smooth touch-screen indoor monitor. It can be connected to the Akuvox door phone for audio/video communication, unlocking, and monitoring. Residents can communicate with visitors via audio/video calls, and it supports opening the door remotely. It is more convenient and safer for residents to check the visitor's identity through its video preview function. C319 series are often applied to scenarios such as villas, apartments, and buildings.