I Don't Like Talking On the Phone

I have severe anxiety when it comes to making calls to other people. If I call someone, my voice will be embarrassingly shakey, my heart will pound in my throat, and sweat will excrete from every possible pore. And that's just when I talk to a random peer or something, so imagine now what would happen if it was my responsibility to call someone to arrange a meeting or call an adult. Expect so many tears...