joshua5@bu-cs.BU.EDU (James Peters) (11/06/88)
I recently purchased a n Everex Evercomm 942 2400 baud internal modem
for my IBM PS/2 Model 50Z which works fine except for one thing, it
answers the phone after the first ring if it rings while I am using
the computer but haven't used the modem. I have asked several people
about it and gotten several answers, none of which have really helped.
First of all, is my modem defective? Or is it just need to be told to
not answer the phone? I know that the command to do this is ATS0=0.
If that is the case, then how do I send this command to the modem at
start up under DOS 4.00? If I can write a Turbo C program to do it
what is the proper address of the COM2 port? And how can I querry the
port to be sure that it is set properly? The DOS manuals say very
little about any of this. The Turbo C manuals are the same. The Everex
manuals give an address range of 02f8-02ff (in hex, of course) for
COM2. There is a note about PS/2 computers using all 16 bits rather
than the first 10. What does this mean, beyond the obvious?
The Everex people didn't help much. I would appreciate
knowing if the modem was broken or that this is just a
common problem that I need to fix.
If anyone can help, please e-mail me.
Thanks,
Jim Peters
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