Public network intercoms, also known as POCs, are half-duplex voice services based on mobile cellular packet domain (PDO) technology.

Compared to private network walkie-talkies, public network walkie-talkies offer significant advantages. Private network walkie-talkies require their own signal channels for communication, and their transmission range is typically limited to a few hundred meters to a few kilometers. Public network walkie-talkies, on the other hand, utilize the carrier's network for communication. In theory, calls can be made anywhere with a carrier signal, enabling nationwide and even global communication.

In terms of functionality, public network walkie-talkies support intercoms, group calls, and group calls, supporting up to 10 users simultaneously intercoming and 50 users initiating group calls. Furthermore, they enable two-way audio and video transmission and allow real-time management and remote control via the network—features unmatched by traditional private network walkie-talkies.

In modern urban life, public network walkie-talkies have become an indispensable communication tool. Their wide range of applications, from daily work communications to emergency rescue operations, demonstrates their unique value and importance. Whether communication needs require wide coverage or demand high communication quality and stability, public network walkie-talkies provide a satisfactory solution.
In general, public network intercoms have become a dark horse in the field of modern communications with their wide coverage, rich functions and powerful performance. If you are looking for an efficient and stable communication tool, then public network intercoms are undoubtedly an option worth considering.