North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: London incidents
On Mon, Jul 11, 2005 at 12:16:34PM +0200, Brad Knowles wrote: > I don't know the specifics of how much capacity is reserved, but > this sort of thing has been done on telecommunications networks for a > long time. Back before cell phones existed, you could have "flash" > traffic on the DDN or even the PSTN, and when placing a flash call > the phone system would disconnect anyone that stood in your way of > getting the connection you wanted. > > You had to be using special telephone equipment, or connected to > a special operator with the right equipment, and you had damn well > better be sure that your call was worthy of knocking anyone else off > the network, but the capability was there. Even the President would > normally make his calls at lower than "flash" priority. See also http://tsp.ncs.gov/ and http://wps.ncs.gov/ , as well as http://www.disa.mil/gs/dsn/tut_mlpp.html and http://www.disa.mil/gs/dsn/tut_precedence.html which explain those Fo, F, I and P keys on AutoVON 16-button WECo 2500s. Cheers, -- jra -- Jay R. Ashworth [email protected] Designer +-Internetworking------+----------+ RFC 2100 Ashworth & Associates | Best Practices Wiki | | '87 e24 St Petersburg FL USA http://bestpractices.wikicities.com +1 727 647 1274 If you can read this... thank a system administrator. Or two. --me
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