Originariamente inviato da xegallo
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
E se il numero telefonico fosse dentro ad un textbox?
Come devo fare?