Does getting a Google Voice phone number get rid of your old one?

I would like to add a second number for people to call to reach my cell-phone (I am making a business, and would like a separate number to give out to people, so when I receive a call I know whether it is a friend or someone calling for the business).





My phone is a Motorola Android, with a Verizon plan. If I add a Google voice number, will my original number still work, or will people only be able to contact me on my voice number?





Thank you!|||Your original number still works.