I also have gizmo set up as line 2 at my house. I have noticed when people call my google voice and my home phone will ring where my gizmo 5 will not. So you may just be seeing growing pains as they transition over to google, or an over loaded SIP server as everyone flooded the gates when they heard google bought it up as google shuts down sign ups on new acquisitions....... Or Epage just cant seem to program