Defects of traditional intercom of cloud intercom

(a), the traditional intercom coverage is limited, completely unsuitable for long-distance applications

General intercom coverage within a few kilometers, in the case of obstacles, the call distance is even shorter;

(b), can not meet the requirements of user confidentiality, the public **** frequency band is not confidential, and easy to be interfered with, the confidentiality of the call in the public **** frequency band Poor. Often occurs string of stations and so on.

(3) High cost of specific frequency bands

Once a user uses a specific frequency band, he/she not only has to pay various fees. Apply for a dedicated frequency band, in addition to regular applications for radio station registration, but also to pay the annual radio frequency occupation fee ranging from several thousand to hundreds of thousands of dollars.