Ask the user for the 4 last numbers in his/hers
voicenumber. If the user gives a faulty answer, 
CNet will hang up on him/her.
     

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  123     225  54.7% -lh5- caee Aug 21  1994 file_id.diz
[generic]                  561    1163  48.2% -lh5- 90d2 Aug 21  1994 Sec.Doc
[generic]                  403     642  62.8% -lh5- 722e Sep  9  1994 Sec.REXX
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    1087    2030  53.5%            Apr 25  1995