I've stumbled on a Vonage Forum thread that explains how it is possible to configure your TiVo to display your Vonage voice mail messages.
Intrigued, I did some clicking around and found some code, which will display when you download and then Unzip the TiVonage file from the Martian Software website.
This app, which relies heavily on John Mutchek's Vonaje Java API for Vonage, lets you:
Check for new Vonage messages, listen to messages, view caller ID and address info and return calls via Click2Call, all via your TiVo.
I did download and Unzip the code, but can't do much with it because I currently don't have a TiVo. Plus, between you and me, I'm not the greatest code jock.
But if I- or you-wanted to take this further, then you might be tempted to go to the TiVonage thread on the TiVo Community Forum.
Have any of you readers looked into TiVonage? Let us know how far you got, and what other experiences you've had.