Thanks Daz! i have experienced the same with GSW, on IOS it will not register if the app is closed and not in application tray, even if in the tray it still has reg problems. I have used zopier on other systems before and will give it a try. I see Bria you can provision from their online portal which seems useful for control, any advise between the two?I find GSWave often loses registration so for free I use Zoiper, otherwise Bria.