Setup: OBi2xx-3-2-2-8680EX.fw with 2 google voice (GV) numbers SP1 and SP2. Has worked fine for years (apart from the service disruption last August).
I seem to be having an issue calling one number from SP2. Looking at the call history it rings and connects. But for this one number (252 area code) there is no audio. This is a number I have called for years. If I call a neighboring number (last digit differs) it connects fine. If I call using the GV app on my cell it works fine.
I have tried unplugging power and reconnecting. I have a very simple set up that I have not changed for years. No advanced configuration, no User Defined Digit Maps.
What do you suggest for troubleshooting?