Archived from groups: alt.sys.pc-clone.dell (More info?)
"cbrand" <email@example.com> wrote in message
> How do I turn off the speaker in my computer tower so it doesn't emit
> the dial-up tone when I use my modem?
> I'm running Windows XP.
Adding M0 to the dial string usually does it.
For a better understanding of your options see this link: