M.L.
I don't have suggestions for getting over it, but I will tell you that can I totally relate. I HATE talking on the phone! I almost never answer my phone unless it is my husband or my mom calling (and it drives my mother-in-law nuts), and sometimes my sisters. I would so much rather email or text. I even make myself 'invisible' when I'm online so I can choose when I chat with someone, rather than being surprised or interrupted by someone wanting to chat with me. It's sad, and I honestly wish it wasn't this way because I know my mom especially wishes I would call her more. I feel like I am becoming something of a hermit, because all I want to do is spend time with my husband and kids - which isn't bad, but I feel like I need to expand my social life so it doesn't just revolve around them ... but I don't know how. I guess I'll be checking back to see what suggestions others have.
Just know that you aren't alone in this phobia.