Date   : Mon, 12 Aug 1985 20:58:00 MDT
From   : Keith Petersen <W8SDZ@SIMTEL20.ARPA>
Subject: 1k protocol discussion

    Thanks for sending the msg intended to answer my question....it
    was written poorly enough, though, that my main question
    (compatability w/ versions not incorporating the extension) remained
    unanswered.  A seperate message that you later sent to info-cpm in
    general (as well as modem7), HOFFGOOD.TXT, cleared this up.  Thanks
    for your help.  In HOFFGOOD.TXT, they ask for help w/ the merge, and
    give phone #...does this person have an arpa address?  if so, could
    you send it to me?  Thanks again,

                       -Richard Hartman
                       max.hartman@ames-vmsb

That person is not on the net.  However, the various versions of XMDM
(XMODEM) have been merged and are now available as:

Filename                       Type     Bytes   CRC

Directory MICRO:<CPM.RCPM>
XMDM116.LBR.1                  BINARY   99200  D27AH

The various versions ARE compatible with MODEM2, MODEM7, MODM700, MEX,
YMODEM (YAM), etc.  However, the receiving end if assembled to use
Hoff's "C" pause "K" approach may cause the sender to time out one or
two times, making some people think the protocol is broken.  This only
happens on the first record - after that the receiving end sends
ACK/NAK as the case may be.

--Keith