DunkinFx,
If all else fails, log into the OBi directly at the IP address returned by dialing ***1 and verify:
Voice Services -> SP1 Service -> X_InboundCallRoute : ph
If it's not, check the Default box (which will set the value to ph). Click Submit at the bottom of the page before leaving the page.
At least temporarily, also set:
System Management -> Auto Provisioning -> ITSP Provisioning -> Method : Disabled
System Management -> Auto Provisioning -> OBiTALK Provisioning -> Method : Disabled
Click Submit at the bottom of the page before leaving the page. Then click Reboot in the upper right corner.
Make a call to your Google Voice number and see if you now receive the call.