[bryanthompson]

I use Time Warner Cable and have their digital phone service, which goes through the cablemodem. It's okay, I've never had any real problems, just little annoyances... like the phone forgetting to hang up. Sometimes the router needs to be restarted. I called the phone using a cell phone, and the cell phone heard seven rings before my house phone even rang. I haven't done much more testing.

I hate phones, but it's cheap and just good enough to be tolerable.