From what I have seen it does not when set to ET but it definitely does when set to Zimmerman. I have just set the method back to ET as I had reset it to Zimmerman and I noticed that the last call showed an update at the time that I set it but the last successful call was showing as some time earlier. I will monitor it over the next couple of days and reconfirm whether or not it is updating since I was not sure how frequently it is supposed to update. Thanks for the response Ray.