can someone explain to me how does the one ring handle incoming calls? For example, I have a tmobile number, which is bound to my n900 sim card, and a gizmo5 number. Both are set in google voice, and both are to ring when someone calls my google voice number. In my n900, I have a SIP/gizmo5 account setup so I can take the SIP call over Wifi. The problem is that with this setup, whenever someone calls my googlevoice number, I get two rings on my n900, one from tmobile, and one from SIP. This can be very bothersome sometimes as there will be two ring tones and one not stop even the other one is answered. Can TOR handle this situation to *one ring* only? Note that I need googlevoice to forward to both Gizmo5 and Tmobile so that I don't miss anycalls when I am not on Wifi networks.