I believe anything you change is going to have red exclamation points :
OBi Expert Configuration (Introduction)Keep in mind there is no need to use the OBiTALK Web Portal at all. You can delete the device from the Dashboard and simply configure it directly. You'll have more control and better status if you do.
For Google Voice on SP1:
Service Providers -> ITSP Profile A -> General -> Name : Google Voice
Service Providers -> ITSP Profile A -> General -> SignalingProtocol : Google Voice
Voice Services -> SP1 Service -> AuthUserName : (Google Voice username)
Voice Services -> SP1 Service -> AuthPassword : (Google Voice password)
Voice Services -> SP1 Service -> X_SkipCallScreening : (checked)
Physical Interfaces -> PHONE Port -> PrimaryLine : SP1 Service