Extended data:
In 2003, the former Ministry of Labor and Social Security applied to open the national telephone consultation service number "12333", and subsequently issued the Notice on Developing the Telephone Consultation Service of Labor and Social Security (Letter of Labor and Social Security Department [2003] No.84) and the Guiding Opinions on the Construction of the Telephone Consultation Service System of Labor and Social Security (Letter of Labor and Social Security [2004]/KLOC- After the establishment of Ministry of Human Resources and Social Security, Notice on Continuing to Use National Public Service Numbers 12370 and 12333 (Human Resources and Social Security Letter [2000 Hangzhou Human Resources and Social Security Bureau official website-Hangzhou Labor Security Supervision Detachment Baidu Encyclopedia-12333)
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