Telephonophobia

I really really hate to admit that among my fears and uneasinesses there is a fear of making phone calls. It's ridiculously stupid, but I can't get rid of it no matter how hard I try. Every time I have to call someone I fall into this weird nervous state when my voice changes, my heart begins to jump to my throat, and I generally feel sick. I'm fine with calling my family or close friends, but every time I need to call a stranger, IT happens. I forget everything I had to say, also my accent becomes really heavy if I speak English. Don't know what to do. This stupid phobia ruins a lot of opportunities, especially job-related ones, because I can't make myself call recruiters or potential employers. I have no problem with talking to the same people when meeting them face to face, but sometimes I just can't force myself to take a phone and dial a number. That's totally frustrating...