[comp.dcom.telecom] Useful service that ESS could provide

simsong@WESTEND.COLUMBIA.EDU (Simson L. Garfinkel) (02/20/88)

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      Date: Fri, 19 Feb 88 10:00:23 PDT
      From: king@kestrel.ARPA (Dick King)
      Subject: a useful service ESS could provide

      It could allow the user to prefix any dialing with DD*, where DD is
      two digits, and the number would appear on the phone bill.

      Useful for remembering what calls were business calls or for
      separating calls made by roommates.  Not secure, of course, but there
      are many applications for which this is okay.

Both Sprint and Centrex allow you to do this.  Except that with
Centrex the account codes can be any lenght, and your phone bill is
sorted first by account codes, second by date, third by number.  You
can also get your bill in machine-readable form.

MIT Does this for long distance phone calls billed to MIT account numbers.