Using Vonage As Answering Service Which Expandable Handset Phones Do You Use With Your Vonage Service?

Which expandable handset phones do you use with your Vonage Service? - using vonage as answering service

Currently I have a Panasonic KX-TGA560B. It's nice because it comes with unnecessary voice mail, but only with 3 phones. Please tell me what you use and what does not please you. Also included are phone # - THX