Public network intercoms and narrowband professional intercoms each have their unique application scenarios and advantages, therefore, it is still inconclusive whether public network intercoms will completely replace narrowband professional intercoms.

Firstly, public network intercoms boast convenient wireless communication, support multimedia communication and positioning, and enable multi-user group calls. They utilize public networks, such as 4G, 5G, or Wi-Fi, to achieve wireless communication nationwide with extensive coverage. Simultaneously, they support various forms of communication including text, images, audio, and video, offering rich functionality. Additionally, they can record the usage trajectory of the devices, facilitating users to keep track of device usage at any time. However, public network intercoms also have some limitations, such as network dependency, security and privacy issues, as well as usage costs.

Narrowband professional intercoms, on the other hand, have extensive applications in specific industries and scenarios, such as emergency services, security, and construction. Their stability and customizability make them irreplaceable in these fields. Narrowband professional intercoms are characterized by strong anti-interference capabilities, stable communication quality, and ease of operation, making them particularly suitable for use in complex environments.

Therefore, whether or not it is necessary to completely replace narrowband professional intercoms depends on specific application scenarios and needs. In situations that require high-speed data transmission, multimedia communication, and extensive coverage, public network intercoms may have more advantages. However, in specific industries and scenarios that require high stability and customizability, narrowband professional intercoms may be more suitable.

Overall, public network intercoms and narrowband professional intercoms each have their own advantages and applicable scenarios. They are not simply a replacement relationship, but rather a matter of choosing and combining their use based on specific needs. With continuous technological advancements and expanding application scenarios, both are expected to play greater roles in their respective fields.