Definition of event delegate you should use if you want to receive the OnDialTone event.
[Visual Basic]
Public Delegate Sub OnDialTone( _
ByVal Sender As Object, _
Byval e As OnDialToneArgs_
)
[C#]
public delegate void OnDialTone(
object Sender,
OnDialToneArgs e
);
Namespace: TAPIEx
Assembly: TAPIEx.Net.Dll