If you're having doubts about getting an "Internet Phone" I will be the first to tell you that it is great! I decided to go with Vonage, and I haven't had any complaints. The features that it provides as a phone carrier is great. Keep in mind that you must have broadband provider DSL/Cable in order to utilize Vonage.

The reasons I went with Vonage

1. I knew someone that had it.
2. Features that came standard. (ie Free out going Faxes, Unlimited Long Distance... much more)
3. Wife was talking too much on Cellphone creating a high bill.
4. I can take it with me when I move or travel.

Send me an email and I can give you a promotional code that allows you 2 free months of vonage service for free plus a free vonage router.