There is a free version at www.k7.net or a toll free version (2 bucks a month) at www.podcastvoicemail.com. Keep in mind with the free one if you don't receive a call in 29 days you may lose your number. (so you can call yourself, or just get a toll free number and never worry about it). Another alternative is www.speakpipe.com or Google Voice. Keep in mind with free options, there is nothing you can do if the system gets shut down