Public network interphone, as a modern wireless communication tool, is gradually demonstrating its unique value and advantages in various fields. Unlike traditional interphones, it does not require the establishment of special base stations or relay stations, but cleverly utilizes public communication networks (such as mobile communication networks) for voice calls and data transmission.

The core advantage of public network interphone lies in its global coverage. Through the mobile communication network, users can maintain real-time communication regardless of where they are, breaking the bottleneck of traditional interphones limited by distance. This global coverage feature enables public network interphones to have a wide range of applications in multiple fields, such as logistics and express delivery, construction, self-driving tourism, etc. In these scenarios, public network interphones can help users grasp the situation in real-time and communicate efficiently, thereby improving work efficiency and safety.

Apart from global coverage, public network interphones also boast rich communication functions. They usually support various communication modes such as current working group calls, dialing group calls, dialing individual calls, and regular communication. Some even have the function of making phone calls. These functions allow users to choose appropriate communication methods based on actual needs, achieving more flexible and efficient communication.

In addition, public network interphones also possess some intelligent features. For example, some advanced public network interphones support IoT cards, positioning, recording, electronic fences, trajectory, real-time video, and other functions. These features not only enhance the practicality of public network interphones but also provide users with a more convenient and intelligent usage experience.

Overall, the public network interphone is a powerful and user-friendly wireless communication tool. By leveraging public communication networks, it achieves wireless communication worldwide and possesses various communication functions and intelligent features. In various applications, public network interphones have demonstrated their unique advantages and value, becoming a shining star in the field of modern wireless communication.