✔ 最佳答案
I'm highly surprised at Answer #1.
(Can Answerer #1 come back, and confirm clearly that he/she has a Mac, and CAN use voice to a PC user using YM???)
My firm understanding - having researched the subject exhaustively for a friend some weeks ago, is that the Mac version of YM simply does NOT HAVE VOICE function.
So - the only way for a Mac user to use voice with a PC user is NOT to use YM, but use some other program instead.
(
http://www.skype.com works real fine for me, and my "Mac" friend).