Class A: Basically, they are all lifelong employees. Class B employees who have worked in the enterprise for a certain number of years will become Class A employees when they renew their contracts, and there is basically no possibility of being terminated.
Class B: In addition to Class A employees, undergraduates, postgraduates and doctoral students currently recruited by provincial companies. Contracts are usually signed once every three to five years.
Class A employees and Class B employees are commonly known as ordinary telecom employees.
Class C: Recruited by a local labor service company, signed a contract with the labor service company, and then dispatched by the labor service company to work in telecommunications, commonly known as dispatching employees. Under normal circumstances, every year 1 prefecture-level telecom branch will have at least dozens of C-type to B-type contract employees, and large-scale prefecture-level branches will have more places.