Excel VBA TAPI call blind transfer

[aatir...@itcompletes.com]

I have dialed a number using tapirequestmakecall function in Excel VBA.

Declare Function tapiRequestMakeCall Lib "tapi32.dll" _
(ByVal stNumber As String, ByVal stDummy1 As String, _
ByVal stDummy2 As String, ByVal stDummy3 As String) As Long

Sub DialNumber(Number As String)
Dim lngStatus As Long

lngStatus = tapiRequestMakeCall(Number, "", "", "")

If lngStatus < 0 Then
MsgBox "Failed to dial number " & Number, vbExclamation
End If

End Sub

I have to transfer the call to extension like 100 after call is connected.

How to do this? Am using TAPI 2.2. Any help would be highly appreciated..

Same questions are posted on microsoft community and stackoverlow but didn't get any help :(

https://social.msdn.microsoft.com/Forums/en-US/f58a044e-c997-429c-95ad-dd26b2dd1d4b/excel-vba-tapi-to-blind-transfer-extension?forum=exceldev

https://stackoverflow.com/questions/49354967/excel-vba-tapi-to-blind-transfer-extension