But the Modem on Hold program won't open.  When I open it from Programs it just tells me I don't have a modem connected.

1dvsdame,

What happens if you uninstall and then reinstall the modem?

1dvsdame,

Thank you for using the Dell Community Forum.

Follow these instructions:

1. Open the program.
2. Click the Settings button. (The lower middle button.)
3. Place a check mark in the box that says "Ignore all incoming calls."
4. Click OK.