Vonage trimmed the price of its Residential Premium Unlimited Plan from $34.99 per month to $29.99 per month. Features and hardware remain at no cost, with no annual contract and a money-back guarantee within 14-days of sign-up. The cheapest Vonage plan is $14.99 per month for Residential Basic, which 500 minutes of local, toll and long distance calling throughout the U.S. and Canada. http://www.vonage.comVonage current has 155,000 VoIP lines in service.