Sometime over the evening yesterday, our Obi/GV service to our Cisco SPA office phone died. Everything looks as it has for months except the extension line buttons on the phone are orange and the phone icon shows broken. The Obi is all green LEDs with activity indicated on the LAN, but calling our number gets no blinking LED on any line. We made sure all the firmware is updated both at Obi and Cisco, and everything is fine. Dashboard shows everything connected, but the Cisco management page simply shows "No service" for the configured phone lines. Anyone else experiencing anything like this? It almost looks like what I would expect when GV drops support / signaling.