What does this mean?

@Pierre Perrot usually students, or private people who are about to start the first job. I will try the "what are you hoping to see in the email, what I can't tell you now." "May I ask if this is a polite way of saying you are not interested? " And " I think a good conversation is one of the best ways to deliver information don't you think so to? In that case let's talk a bit more or do a quick appointment in the future."

Depends who I try to reach and if they showed interest. Usually I call 2 times in a week and then do a break for a week or two. This way it might take longer but I never had a response that I was too pushy or something like "this must generate you allot of money if you call me this frequent", what some coworkers experienced.

I strongly recommend to keep personal numbers and work numbers separated. Older people value being called via landline, the younger generation prefer mobile. At least here in Germany.