Will the induction of China Merchants Securities be reversed?

Joining a securities company will change the tone, which is the most critical step in recruiting employees and one of the key criteria for deciding whether to hire or not. However, before replying, the examinee's authorization is required. What does the back sound mean? In fact, HR will have a deeper understanding of the candidate's basic information, integrity, ability and so on through ring back tone, so as to better judge the candidate and find out the most suitable candidate for the company.