- Cellular telephone entry systems with cameras :
To accommodate technology innovations, some manufacturers have opted to offer the telephone entry system with a camera. These systems may have a built-in camera or may require you to purchase and install a camera separately.
However, telephone-based intercoms can’t handle two-way video transfers. As a result, residents can see videos of their visitors, but visitors can’t see residents.
2. WiFi phone entry systems :
Some companies have attempted to modernize the telephone entry system by using WiFi instead of cellular networks in recent years. WiFi telephone entry systems send data between residents’ cell phones and system hardware via WiFi instead of a telephone network.
WiFi telephone entry systems are a decent attempt at adapting cellular systems to the modern age. However, they fall short in crucial ways. WiFi networks and cellular networks are different. Because of that, consistent and rapid communication between them is difficult.