A job description's primary purpose is employee recruitment. The job description alerts potential employees to the job opening and the job's requirements. As a result, the job description meets the company's need to attract qualified employees as defined by the job summary and job functions specified in the description.
in 1947 bell labs made the first cell phone but it took dr cooper of motorola to make a cell phone in 1974 for the government the public use of cell phones began in 1984 your question has two answers the phone was invented in 1889 by bell
On March 6, 1983 Motorola started selling DynaTAC 8000X, the first commercial portable cellular telephone, at a price of $3,995. The DynaTAC 8000X was truly the first mobile telephone which could connect to the telephone network without the assistance of a mobile operator and could be carried about by the user. It weighed 28 ounces (790 g) and was 10 inches (25 cm) high, not including its flexible rubber duck whip antenna.