How to set the modem to ignore the dialtone
control panel>> modems>> properties>> connection tab
Untick wait for dialtone.
Advanced tab>> add the following extra settings:
AT & FX3
control panel>> (switch to classic view) phone and modem options>> modems (tab)>> Highlight the modem>>
Properties (button)>> Advanced (tab).
Untick "Wait for dial tone before dialing" (bottom of the window).