dovresti documentarti sulla tecnologia TAPI
cmq per fare un numero attraverso il modem
codice:
Private Declare Function tapiRequestMakeCall Lib "TAPI32.DLL" (ByVal Dest As String, ByVal AppName As String, ByVal CalledParty As String, ByVal Comment As String) As Long
Private Sub PhoneCall(sNumber As String, sName As String)
Dim lRetVal As Long
lRetVal = tapiRequestMakeCall(Trim$(sNumber), App.Title, Trim$(sName), "")
If lRetVal <> 0 Then
'Couldn't make the call.
'Take appropriate action
End If
End Sub
Private Sub Form_Load()
PhoneCall "123456", "TheName"
End Sub