Change my voicemail..?

i have a cyclops cell phone from from virign mobile, and i allready have my voicemail set up but i want to change the voicemail recording that i used. how do i change it. i know that you call your phone, but what do i do after that??Change my voicemail..?I DONT KNOW I NEED TO KNOW TOO.Change my voicemail..?i suggest you to buy new cellphone which everybody can work whit it.then they can answer your question