I've seen references to perl scripts that can pop up a notification of an incoming call on your computer. However the way they work is by constantly polling the OBi (e.g. once per second) and they do this constantly, whether a call is active or not. It would be nice if some sort of "push" mechanism could be implemented that would allow the OBi to notify me of the incoming call. I'm sure there are various ways to do it, but one way to do it would be a simple HTTP get to a user specified URL. It could either include the caller information in that request, or I could use it to trigger a read from the OBi to fetch the detailed information.