Not sure what you are referring to, but I would suggest you get your OBi device setup without any change on your router. Then, simple check on following things to see if the device works OK -
1/ Lift your handset off the hook, and you should obtain a dial tone immediately
2/ Dial * * 9 - 222 222 222, OBi echo test, and see if you can get your own voice echoed back.
3/ Setup Google Voice through OBiTALK portal, and see if you can place or receive a call.
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