What's cold call?

I never thought you guys don't understand what I meant, telephone apointment.

In fact there are a lot of Japanese-English (The words that seem to come from English, but actually, it isn't.) , like Fight!. In Japan,"fight" is used when we cheer people doing a game.

Anyway, I explain telephone appointment (Japanese English),cold call ←I used dictionary.
There are so many kind of cold call. What I did is that I telephoned people randamly for canvass to change their telephone company, NTT to KDDI.
Oh, NTT and KDDI are Japanese Telephone companies.
Like , salesman, you know.

So I had to not only call people but also contract with them.
But, contract is really difficult. Most people never listen my words; they pretended they were busy now. I know their feeling, because whenever I take cold call, Ido the same thing.
This experience is a little bit shockking news, but I never mind, haha:)