Whenever I get an SMS on my GV number, I get a notification through Google Voice and also through the default messaging app (as a 406 number). It's a nuance that I'm informed twice of a single SMS. I still need to keep notifications on for the default messaging app because I still receive texting on my non-GV number. Is it possible to have the default messaging app notify me of non-GV texts and Google Voice notify me of GV texts only? Better yet, how do I stop getting texts from the 406 number?