Android Question Doorbell App - how should I start?

#Region Module Attributes
    #FullScreen: False
    #IncludeTitle: True
    #ApplicationLabel: Kiosk App
    #VersionCode: 1
    #VersionName:
    #SupportedOrientations: unspecified
    #CanInstallToExternalStorage: False
#End Region

'Activity module
Sub Process_Globals
    Dim kiosk As Boolean
    kiosk = True
End Sub

Sub Globals
    Dim btnStop As Button
    Dim btnSkype As Button                                        'I added a button for Skype
    Dim mySkype As Skype                                        'Added

End Sub

Sub Activity_Create(FirstTime As Boolean)
    mySkype.Initialize                                            'Added
    btnStop.Initialize("btnStop")
    Activity.AddView(btnStop, 10dip, 10dip, 200dip, 200dip)
    SetButtonText
    btnSkype.Initialize("btnSkype")                                'Added
    Activity.AddView(btnSkype, 10dip, 200dip, 200dip, 200dip)    'Added
    btnSkype.Text = "Door Bell"                                    'Added
End Sub

Sub Activity_Resume
    Log(Activity.GetStartingIntent)
    If kiosk = False Then
        Dim r As Reflector
        r.Target = Activity.GetStartingIntent
        If r.RunMethod2("hasCategory", "android.intent.category.HOME", "java.lang.String") Then
            Activity.Finish
        End If
    End If
End Sub

Sub Activity_Pause (UserClosed As Boolean)
    If kiosk Then StartServiceAt(KioskService, DateTime.Now + 1 * DateTime.TicksPerSecond, False)   
End Sub

Sub btnSkype_Click                                                'Added call to the Skype test server

mySkype.AddParticipant("echo123")   
mySkype.AudioCall(mySkype.ParticipantsList, "Hello There")
   
End Sub

Sub btnStop_Click
    kiosk = Not(kiosk)
    If kiosk = False Then
        CancelScheduledService(KioskService)
        StopService(KioskService)
    End If
    SetButtonText
End Sub
Sub SetButtonText
    If kiosk Then
        btnStop.Text = "Stop"
    Else
        btnStop.Text = "Start"
    End If
End Sub