In message <[EMAIL PROTECTED]>, "Robert E.Seastrom" writes:
>
>
>Brad Knowles <[EMAIL PROTECTED]> writes:
>
>> There were lower levels of priority that you could also use,
>> but "flash" was the top one that I heard about.
>
>The four buttons on the "1633" row of an AUTOVON telephone are labeled
>P, I, F, and FO for Priority, Immediate, Flash, and Flash-Override.
>The fifth (normal) level is of course routine, with no priority code
>attached.
And those levels appear as the TOS bits in RFC 791....
--Steven M. Bellovin, http://www.cs.columbia.edu/~smb
