YES! I Googled modem sound turn off and found this site:
http://www.logicaltips.com/LPMArticle.asp?ID=112Here is what a Susan Daffron said:
...modem parameters using the old Hayes AT command set. Most modems still understand these cryptic parameters. So, to turn off sound, go into the Control Panel, go to Modems, select your modem and click the Properties button. Click the Connection tab and click the Advanced button.
You see a fill-in box called "Extra Settings." This box is where you can include any modem initiation commands you want to include. In your case, you want the speaker turned off, so add ATM0 (that's a zero, not an o). Click OK twice, then Close.
In my XP, the process was a little different: Control Panel, Modems, Modem, Properties, Advanced, but it worked. Pass it on!
Dr. D
And thanks for reminding me to Google!