DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   Caller ID
   CID
      <communications> (CID) A short piece of text transmitted by
      some telephone systems describing the origin of a call,
      e.g. the name of the caller.  Some telephone handsets can
      display this.  A computer telephony integration system might
      use it to trigger actions on the callee's computer such as
      looking up the caller in a database and displaying their
      details on screen.
      There may also be a separate "caller id number" giving the
      telephone number of the originator of the call.
      (2008-04-30)