Date   : Sun, 09 Sep 1984 11:23:00 MDT (Sun)
From   : Keith Petersen <W8SDZ@Simtel20.ARPA>
Subject: New MX-SM13A overlay for MEX/Anchor XXII modem

Thanks to Alex for this further fix for the Anchor modem.
--Keith

Date: Sunday, 9 September 1984  09:03-MDT
From: Alexander M. Fraser <T.ALEX%MIT-EECS at MIT-MC.ARPA>
To:   W8SDZ at SIMTEL20.ARPA
cc:   RFowler at SIMTEL20.ARPA
Re:   New MX-SM13A overlay for MEX/Anchor XXII modem

(Please forward this to Bob Sandel to please, since I don't know his
net address if any)

The problem is that there is no pause between the ''+''s.  The
Anchorman has either a bug, or a safeguard that if the +s pass through
at full speed (as they would in an ESC+T type transfer), the modem
ignores them.  I put in a patch to call a delay of 6 in the timer
sequence between the ''+''s and doubled all the other delays in the
disconnect sequence and it works at least 95% of the time.  The way to
solve the ^C problem is that the Anchorman will not abort on (CR), it
needs an A.  I modified it to send (CR), pause, ''A'', pause, ''T'',
pause and then (CR).  Works all the time, except while the Anchorman
is still sending back the numbers (ie still dialing) (the Anchorman
echoes each character back as it is dialed).  Another thing that
should be down with the MEx overlay is to increase the timeout (which
is default 60 seconds).  Since the Anchorman waits 36 seconds before
hanging up and some ALD pauses coul make up the rest to 60, sometimes
it times-out too soon.