#: 17508 S12/OS9/68000 (OSK)
    10-Feb-93  21:29:45
Sb: #17498-#Xon/off
Fm: Carl Kreider 71076,76
To: Bob van der Poel 76510,2203 (X)

>Now, I read in my modem manual that it will resond to xon/off senquences too.
>This is kind of scary since it
 might be the result of binary data being sent
>down the line. I have no idea what happens next, but I do think I'll make sure
>the modem is not set up that way.

This sounds scary to me too.  I would switch it off.

>Now, I am using /t3 on a mm/
1 with type=80. This is supposed to mean that
>hardware handshaking is enabled. I have no idea how a hardware handshake works
>over a phone line...probably doesn't. So, maybe the modem knows about it and
>will stop sending stuff when told to stop. However, what happens with the guy
>on the other end of the modem? Does it keep sending anyway?

Hardware handshake will only throttle the outbound data for the modem if the
phone line isn't as fast as the serial connection to the modem.  Shouldn't
mean anything the other way - ie the MM/1 shouldn't want to shut down the
modem because the guy at the other end won't know it.

>So, I assume that xon/off are only used by a driver when its buffer is full
>and hardware handshaking is not enabled. In which case the values in the
>desciptor are meaningless if hardware handshake is available.

I don't remember if I disable xon/xoff if type is 80.  Best zero them out.

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