It looks like you can sign up at gotvoice.com. It will check your voicemail and email them as mp3s. But Im sure that its gonna use your minutes when it checks your voicemail. For additional money, they transcribe your voicemail and send it to you. Also, maybe look at something like a number from grandcentral. You give people your grandcentral number. They call it and you have it forwarded to your cell phone. If you dont answer it, they leave a voicemail that you can get by going to their website.