IsCallable

'NOTE: A Service Reference to the web service must be added to use this sample code.
Private Sub IsCallable(ByVal number As String)
    'Declare the required options.
    'Invoke the web service method.
    Dim proxy As CTPSSoapClient = New CTPSSoapClient()
    Dim results As CTPSOutput = proxy.IsCallable("your-username", "your-password", number, New [Option](-1) {})
    'Check that the call succeeded, and show the error message if there was a problem.
    If (results.Status.Success = false) Then
        MessageBox.Show(("Error: " + results.Status.ErrorMessage))
    Else
        'TODO: Process method results here.
        'Results can be extracted from the following fields:
        'result.Callable
        '  Indicates if the supplied telephone number is callable (i.e. not on the CTPS)
        'result.TelephoneNumber
        '  Contains the original telephone number if it is callable
    End If
End Sub

Public Sub IsCallable(number As String)
  Dim rs As ADODB.Recordset
  Set rs = New ADODB.Recordset
  rs.Open "https://webservices.data-8.co.uk/recordset.ashx?service=CTPS&method=IsCallableSimple" &
    "&username=your-username" &
    "&password=your-password" &
    "&number=" & number
  If rs.MoveFirst Then
    If rs.Fields(0).Name = "Success" And rs.Fields(0).Value = false Then
      MsgBox "Error: " & rs.Fields(1)
    Else
      'TODO: Process method results here.
      'All the results are available in the first row in the recordset.
      'Results can be extracted from the following fields:
      'Callable
      '  Indicates if the supplied telephone number is callable (i.e. not on the CTPS)
      'TelephoneNumber
      '  Contains the original telephone number if it is callable
    End If
  End If
End Sub