Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!portal!cup.portal.com!Kenyon_F_Karl
From: Kenyon_F_Karl@cup.portal.com
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: BackMail question...
Message-ID: <20501@cup.portal.com>
Date: 16 Jul 89 05:25:55 GMT
References: <2694@blake.acs.washington.edu>
Organization: The Portal System (TM)
Lines: 36




        icsu6000@caesar.cs.montana.edu writes:
        
        "Has  anbody used the backmail program posted to c.b.i.p to  con-
        nect  two PC's over the RS232 ports, but skip the  modem??   Bas-
        cially  I  just want the two PC's hardwired  together,  and  have 
        BackMail do it's thing.
        
        "I haven't any brilliant ideas on how to set this up...  The  few 
        things I've tried haven't worked."
        
        -----------------------------------------------------------------
        
             I think that you are asking for an option that never crossed 
        the minds of the authors. Thus, if the program can't get a  Hayes 
        compatable  modem to respond - then it has some reason  to  think 
        that something is terribly wrong.
        
             Thus  the simple thing is to go out and buy two  modems  and 
        rent  two phone numbers from your friendly telephone company.  Of 
        course, when the rest of the 'known world' start using  BACKMAIL, 
        then you'll have other people to send mail to as well.
        
             Have you thought of digging around the Appendix A "Technical 
        settings"  in the manual? I suspect that your 'crazy idea'  might 
        start to work if you set the 'appropriate' modem command  strings 
        to  spaces. Thus, the trick is to get the program to  think  that 
        the  'blank stares' that the software gets from the 'null  modem' 
        is exactly what it should expect as replies to the commands  sent 
        to the null modem. Of course, the dialing commands may also  have 
        to be changed to long strings of spaces, or some such thing.  You 
        may  also want to play with the wiring of the cable so that  each 
        machine  gets  the modem control signals that it has a  right  to 
        expect from a legitimate modem.