I can not communicate via phone in English. In my native Hungarian it is also an issue but I learned to cope with it. During official phone calls I tend to close my eyes, turn my head down, and smear my temple, eyebrow, eyes, while concentrating on the conversation. I have to gather information before the phone calls so to have something at my hands to communicate. Otherwise thoughts, facts slip out of my mind.
At home I often pace around the room while I speak on my mobile phone. When I'm amongst others, I seek for a room where I can be alone, and shut the door. I always look down during the conversation.
When I speak via the net (Skype) I never use webcam, I feel it would be a burden to me looking "normal" during the call, as I often pull up my legs, close my eyes.
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Another non-English speaking - DX'd at age 38
"Aut viam inveniam aut faciam." (Hannibal) - Latin for "I'll either find a way or make one."