Help Google Voice question - voicemail service

[slumpey]

I am using google voice for voicemail but kept my original phone number, not when it asked if I want a google number. My question is under Settings > Call > Voice Mail service, I see My carrier in Google Voice. Which one should I use and what does this do exactly.

Would this effect my text messaging via verizon at all because I believe you can sms with google voice now?

 

[necosino]

I think you have the service a little confused. Please read this, it will help clear things up.