Many people may not understand the difference between labor dispatch companies and labor outsourcing companies. In a narrow and simple sense, the dispatched employees can enjoy all the benefits of the dispatched company, while in the form of labor outsourcing, they can only enjoy part of the benefits of the outsourced company. So objectively speaking, the labor outsourcing system is not as good as the labor dispatch system.
With this explanation, I believe you also know the nature of employment in this company. The social workers recruited by the company are all outsourced, and the welfare benefits can't meet the standards of telecom state-owned enterprises, so the benefits of workers hired by the company are not very competitive in society.
At present, most state-owned enterprises in Nanjing either adopt labor dispatch system or labor outsourcing system. Speaking of promotion space, there is, but it is only promotion or supernumerary transfer.
Off-topic, from the perspective of human resource risk management and control, for example: A few years ago, Nanjing baixia district was merged into Qinhuai District, which led to a large number of layoffs in functional institutions such as streets and neighborhood committees in baixia district. Although such groups will have dismissal subsidies, those who are dismissed will face great job-hunting pressure. After all, most people are old. Similarly, the foundation of this employment system in this company is indeed unstable. If there is a company reorganization or change, it is really hard to imagine where the social recruiters will go. Therefore, if you want to find a stable job, you'd better think twice.