Caller ID System 320
(430-0957)                  Hints and Tips             Faxback Doc. # 17938

ICLID Number:  Most Caller ID messages have an ICLID number.  This is
               usually a ten digit number composed of the three-digit
               area-code, the three-digit office exchange , and the
               four-digit phone number extension.  However, Belcore specs
               indicate that this number can be as many as sixteen digits,
               but currently there is no known system that sends more than
               ten in the ICLID.  When the Caller ID displays the ICLID,
               it separates each of these components with a dash.
               Example of an ICLID number:  214-555-1212

DDN:  Some areas will also provide a DDN.  This is a number that if dialed
      exactly as displayed will allow you to reach the person that called
      you.  The Caller ID System does not insert dashes into the DDN when
      displayed.  Not all areas provide the DDN.
      Example of a DDN:  12145551212

The Caller ID displays only ten-digit ICLIDs.  If the display has dashes
in it, there are only ten numbers to see.  Pressing READ will have no effect.

The Caller ID displays DDNs up to sixteen digits long.  Since the display
will hold only ten, you may press the READ button to display the rest of
the numbers.

If both ICLID and DDN are provided in the user's service area, this
Caller ID System gives precedence to the ICLID.