■Set the modem to ignore dial
1.Select Start⊕Settings⊕Control Panel⊕Modems.
2.Select your modem, then select Properties⊕Connections tab, then clear the Wait for Dial Tone Before Dialing check box.
NOTE: If you continue to receive the No Dial Tone error message after clearing the checkbox, click Start ⊕Settings⊕ Control Panel⊕Dialing Properties⊕select USA in the “I am in:”