What are the classification categories of telecom recruitment staff?

class a, don't think about it now, any operator is gone.

class b refers to employees recruited by provincial companies, who generally sign contracts with provincial companies, and this kind of employees is regarded as regular workers (contract workers).

class c refers to employees recruited by municipal companies themselves, who usually sign contracts with third parties and then are sent to operators by third parties, which is regarded as laborers or dispatched employees.