Because, in the hospital, there is a lot of people who want access to treatment, including relatives who want to watch a sick man. Patients who are hospitalized, they will be able to use the tools of communication.
The hospital also has a lot of people who need treatment. Including the need to care for sick relatives. Patients treated at the hospital. It can be used as a communication tool.
Because in a hospital, there are a lot of people to be admitted. Including relatives to take care of the sick. The patient to be hospitalized Can use the communication tools.