Free VoIP Voicemail Software
The popular free VoIP client Skype provides a Voicemail capability. This is free for PC-to-PC calling/messages, and can also be set up to take Voicemail messages from standard phones (for a small fee), using the SkypeIn feature.
How to get VoIP Voicemail Messages in your Inbox
If you run Microsoft Outlook, you can use software known as “Skylook”, in conjunction with Skype, to get Skype Voicemail messages delivered to your inbox.