I get about 5 junk calls a day, at least 2 usually in Chinese. Does anyone know what the ones in Chinese are about? These days I just don't answer unless it's

I get about 5 junk calls a day, at least 2 usually in Chinese. Does anyone know what the ones in Chinese are about? These days I just don't answer unless it's someone in my contacts, if it's anything important they'll leave a message. Wonder if it's possible to have a plan with NO voice on it!