What does it mean to send an interview invitation directly without calling?

Considering that the company is a real move, the positions are generally sales positions, with low wages and high mobility. The reason why the interview invitation is sent directly is because the company needs to recruit people for a long time and save the recruitment cost.

Don't be curious about the invitation interview with abnormal process, it's not a good fruit, just ignore it decisively. From Post Bar Q User: Fudge CSI

This is determined by many factors. There are hr reasons, such as unprofessional hr and recruitment HR. There are also reasons for the enterprise itself. It may be that the demand of the enterprise is large, or it may be that your phone number has been dialed but you can't get through. But when you are looking for a job, I suggest you check the enterprise, or consult the starting point of your job search and the places you care about before making a decision. There is no harm in finding a job and getting to know more about it. From Q user: Mr. Liu