I have vonage with adelphia. vonage is great when you aren’t downloading anything.
Vonage pros:
-cheaper than regular phone service
-long distance inside the country is included
-crystal clear sound when there are absolutely no internet connections being made, except by the phone itself
cons:
-if you are downloading, expect a delay proportional to how much you download…anywhere up to a 20 second delay.
-echos if you have mild downloads
notes:
-your phone lines wil become obsolete if you continue to connect to the internet via cable. Vonage uses your internet connection. Some people use DSL, and might use the phone lines for vonage, but cable users do not.