Modem Doctor BBS  (410-256-3631)....Beta Release Modem Doctor 4.01

 Whats new in 4.01

"Letters....we get letters"...and we read them.

This is a beta test version of Modem Doctor for those of you out there who
want only the "latest and greatest" of something. There are several
experimental routines in this version, and due to the fact that there seems
to be a new modem released every week these days, I felt that it would be
best to test it among as many people that wish to give it a try.

All of the changes in this are minor, some are cosmetic.

1) Experimental tests
      Setup section -
          The speed of the initial modem diagnostics has been improved
          dramatically.

      Regs section -
          The DTR/DSR handshaking test has a new timer routine. Some uarts
          were being interperted with false status, especially on lower
          speed computers.  Normally, DSR will stay high on most modems,
          if it stays low, that should indicate a modem that is off, or a
          bad interconnect cable. (Thanks to Roy Zider for his help).

          Some Modems are not employing CCITT V.54 protocol in a manner
          that allows testing of the dynamic handshaking features. A patch
          has been made that should correct this (Thanks to Stu Winokur for
          all his help)

      Baud Rate -
          56000 was changed to 57600. According to National Semiconductor's
          Uart Handbook, the top speed is supposed to be 56000 + or -
          2.86%. Well, it seems most comm programs go for the highest
          speed, so they factor in the 1600 cps difference. In actuality,
          your speed could also be 54400 too! At lower speeds the rate of
          error is too low to make a difference. In short, since everyone
          calls it 57600, so will Modem Doctor (sorry NSI).

      Interactive Mode -
          This module was re-compiled using the latest version of Borland's
          TASM Macro-assembler. One user has reported that the program
          hangs. I believe the problem is related to the length of time
          that interrupts are held off during screen writes. With the
          widespred use of Extended memory and EGA/VGA autoswitching, this
          could pose a problem.

       Loopback Mode -
          Option 3, how to build a plug, is now active in the shareware
          version. Sorry guys, I've been meaning to do this for some time,
          but forgot to remove the compiler directive.

       Login (Registered Only)
          Some Comm boards are now being manufactured with addresses just
          above the system board of 100H. Earlier versions of Modem Doctor
          would not log these in. Now you can.

 The above are minor fixes. Please take the time to beta-test this version
 and leave your comments on the Modem Doctor BBS at 410-256-3631. If you
 wish to upload this to a BBS, you may..but PLEASE make sure to tell
 everyone that this is a BETA TEST VERSION!

 Thanks,

 Hank Volpe