Why do I always receive calls from some companies in Dongguan, Guangdong, asking me to call them for phone interviews?

Dongguan is the hardest hit area for pyramid schemes. Typical tricks are:

Claiming to be recruiting from a well-known company, using 114 to find out-of-town private phone numbers, mobile phones, PHS, newly registered QQ numbers, Free email addresses such as 163/126 are used as contact information to "invite" job seekers who lack social experience, especially fresh graduates, to go to the so-called project department/branch/training base for interviews/training/internships/trials/physical examinations/reports/business trips.