This problem involves a wide range. Our view is: the comprehensive cost of a digital wireless paging and intercom system is almost the same as that of a wired system. The hospital is not a place with serious wireless interference. The wireless system will not affect the hospital equipment. In turn, hospital equipment will not cause obvious interference to the call system; no matter how you say it, the stability of a wired method that meets international standards is unquestionable. In terms of system reliability, functional scalability, implementability, and maintainability, the wireless system is obviously better than the current popular wired system. Although the wireless digitized voice is slightly worse than the wired voice, for the intercom system, the clear sound quality of the wireless system meets the requirements of the national standard; although the wireless distance is limited, it is currently fully suitable for the use of standard hospitals. With the advancement of technology, the application of networked call systems will no longer be limited by distance; although each extension uses batteries, the extensions with super power saving and long standby can meet the requirements of hospitals well. With the continuous advancement of battery technology, the problem of extension power supply almost disappears.

The internal communication of intelligent hospitals is constantly developing towards network and digitalization, which puts forward higher requirements on communication quality. The hospital call system is no longer a simple second-line system. The digital wireless call intercom system is precisely for this. Demand arises at the historic moment.