And the reminder is: I don’t really like it and I’m very likely to be annoyed with you if you do it, and when I’m annoyed, I have a pronounced tendency to be rude. Which I’m pretty sure you won’t like.
Who is exempt from this “don’t call me on the phone” rule? Personal friends who I know in real life and/or business associates (i.e., people who pay me money on a regular basis, or with whom I am talking about services which will result in them paying me money). Everyone else should use e-mail, and even those people who are thinking of trying to do something with me which will result in me getting money should e-mail first.
Basically: When in doubt, don’t call, use e-mail to contact me. I bring this up because of a recent spate of people calling me up out of the blue, which I want to nip in the bud, because it makes me cranky to be called up by (to me) completely random folk, who are usually bugging me about something I’m likely to tell them just to send me an e-mail about, anyway.
This is all covered in my contact information in any event.
“But what I have to tell you is really important and I’m sure you won’t mind –” Yes, I will mind, actually. Remember that what is important to you is not necessarily important to me. And even if it is something that’s potentially important to me, do you really want to start off trying to tell me about it in a way that’s going to annoy me? I’m guessing “no.”