Collect instore, seems to be available in quite a few places.
The VONAGE VTA D-LINK TELEPHONE ADAPTER includes a Vonage Internet Service Kit. It plugs in simply to an existing router and is easy to use. It's great for all your phone needs.
Includes Vonage Internet Service Kit
Connect upto 2 Vonage lines through a broadband connection
Great for all phone needs
Perfect for exisiting home networks
Simply plug into existing router
Connect to existing phones or fax via standard telephone jacks