Uses exported node registration information, contained in a text file
 created by the EXPORT command or by a text editor, to help maintain
 a directory service.

     IMPORT FILE data-file-name
         [ function ]
         [ ERROR_FILE error-file-name ]
         [ NAME_TEMPLATE template ]
         [ DIRECTORY_SERVICE dir-service ]
         [ PHASEIV_PREFIX addr-prefix ]
         [ REVERSE_DIRECTORY rev-dir-name ]
         [ SYNONYM_DIRECTORY syn-dir-name ]