24.txt

VB文章集（含API、窗口、数据库、多媒体、系统、文件、等等）

电话拨号   
       
利用 API 可以直接拨号。声明：

Private Declare Function tapiRequestMakeCall Lib "TAPI32.DLL" (ByVal DestAddr$, ByVal AppName As String, ByVal CalledParty As String, ByVal Comment As String) As Long
例子：
Public Sub CallPhone(Number As String, Name As String)
Dim lRes As Long
If (Trim(Number) = "") Then
Exit Sub
End If
If (MsgBox("About to call " & Trim(Name) & " at phone number " & Trim(Number) & vbCrLf & "Do it?", vbYesNo, App.Title) = vbYes) Then
lRes = tapiRequestMakeCall(Trim(Number), App.Title, Trim(Name), "")
Debug.Print Now; " CallPhone -> tapiRequestMakeCall Result code = "; lRes
End If
End Sub

还有一种方法是：
PhoneNumber$ = "[phone]"
Open "COM2:" For Output As #1 'or COM1
Print #1, "ATDT" & PhoneNumber$ & Chr$(13)
Close #1
当然，该方法只适合小型的应用。