Is the smart doorbell of China Telecom installed quickly?

Hello, tianyi housekeeper's smart doorbell can not only listen, but also watch and video intercom. When someone rings the doorbell outside the door, the indoor high-power speaker of the smart doorbell will ring. At the same time, the camera of the smart doorbell will be awakened, and the owner can check the situation outside the door shot by the camera in real time on the mobile phone to see if it is an acquaintance or an agreed door-to-door object, and can conduct real-time visual intercom and two-way voice to deal with family affairs, such as the scene. Not only convenient for daily life, but also anti-theft. Once someone stops in front of the door, the doorbell will automatically record the video and push the message through the winglet housekeeper App. If the smart doorbell is stolen or forcibly removed by others, don't panic, because it will sound an alarm at this time, and the owner will also receive the alarm information and take timely intervention measures.