On Wed, 29 Nov 2006 10:33:15 -0800 Dave Crocker <dhc2@xxxxxxxxxxxx> wrote: > > The underlying specifications permit you to have different > addresses, for different services. They also permit you to have the > *same* address. > This is only a good idea if coupled with a powerful, easy-to-use interface that restricts presence visibility. Many more people have my email address than my IM addresses; I'm also very careful about who gets my mobile phone number. Why? Because IM communication and phone calls interrupt me in a way that email does not. In fact, I take advantage of email to avoid giving out the other information promiscuously -- I tell people who perceive an urgent need to reach me to email page-smb at the appropriate domain; this address is translated to both SMS and a direct email message. --Steve Bellovin, http://www.cs.columbia.edu/~smb _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf