08/09/90 - v1.2c
  ~~~~~~~~~~~~~~~~
     Final v1.2 beta compile.  Changed to a new memory management
library and fixed the leave() function to close all open ISAM
files.

  08/03/90 - v1.2b
  ~~~~~~~~~~~~~~~~
     Added a "wildcard" area code to NOCALL.DAT.  If the area
code entered in NOCALL.DAT is (000), the prefix following is
disallowed regardless of the area code.  This will be usefull
in eliminating the use of 976 numbers.
 
     To disallow ALL 976 numbers, place this entry on a line
in your NOCALL.DAT file:  "(000)976"  (without the quotes!)

     Also added area code exclusions to NOCALL.DAT.  To disallow
ALL 900 numbers, enter this in NOCALL.DAT: "(900)"  (without quotes)

     Fixed a little problem with the update feature.  If a user
had failed a previous call back, he would not be allowed to use
CallBack again, because it would find HIS number and kick him out
claiming that he was using another persons number.

  07/28/90 - v1.2a
  ~~~~~~~~~~~~~~~~
     Attempt to bust a bug in the password input area.

  07/15/90 - v1.2
  ~~~~~~~~~~~~~~~

     Located a few "loose" ends that may have been the cause
of a few problems.  Will go to beta with just this much of a
change to see if the  problems are solved before making some
of the updates.

  02/11/90 - v1.1
  ~~~~~~~~~~~~~~~

     Added support for "zone" calls as dialed in the midwest
and eastern  states.  This format is 1-XXX-XXXX with no area
code.   This addition  reqiured the  addition of one line in
the config  file and  the creation  of  another  data  file.
Users upgrading  from version  1.0 will have to add one line
to the old config file.  This line determines whether or not
you will allow these zone callbacks.  Place a one (1) on the
line to  allow the  calls, a  zero (0)  to disallow.   These
calls will  be treated  similar to  long distance  calls and
will require  the user to callback for further access if you
allow the call to be made.

    Hopefully fixed an annoying little bug that occured when
the phone rang an incoming call while the door was trying to
call out.   If  this happens,  the door  will send out a off
hook (ATH1) and then on on hook (ATH0) to the modem in order
to clear  the line.   I am still working on a cleaner way to
do this but I hope this helps in the mean time.

      The ZIP  now includes  a utility  which will  help you
create your  CallBack config  files.  This utility is called
CBConfig  and   requires  the  two  files  CBCONFIG.EXE  and
CBCONFIG.HLP to  be in  the same  directory as your CallBack
files.