I just set up my OBitalk 200 with my Google Voice account, and everything is working, EXCEPT when I tried calling it from another number to leave a voice message, I pressed # and nothing happened. Usually, on a digital system, pressing the pound sign will allow you options, such as "Press 2 to review your message," "Press 3 to delete," etc. How can this be set up on this system? Is there a way to provide callers with this option? Please advise.