1. Using WaveMail to syncronize users' Wave contacts and voice messages with their e-mail program

WaveMail can optionally synchronize a user’s voice messages or contacts (or both) between Wave and the user’s e-mail program. WaveMail then allows the user to:

Receive, listen to, and manage voice messages from either Wave or the user’s e-mail program.
Share and maintain a single set of contacts between Wave and the user’s e-mail program.

See:

WaveMail requirements
How WaveMail voicemail message synchronization works
How WaveMail contact synchronization works
Configuring your e-mail provider for WaveMail
Configuring a user's WaveMail mailbox
Troubleshooting WaveMail issues