HOLMDEL, N.J., Aug. 30, 2012 /PRNewswire/ -- Vonage Holdings Corp. (NYSE: VG) today announced that their groundbreaking Vonage World plan now includes unlimited calling to mobile and landline phones in Vietnam. Unlimited calling to mobile phones in South Korea has also been added to the calling plan, which previously included unlimited calls to South Korean landlines 1. The flagship international calling plan from Vonage provides unlimited calling to over 60 countries, including mobile phones in more than 10 countries and territories, as well as unlimited calling to the U.S., Canada and Puerto Rico. Vonage World callers can utilize the innovative Vonage Extensions™ feature, which allows customers to extend their Vonage World residential plan to their mobile phone at no additional charge to make calls. "Vietnamese residents currently comprise the fifth largest foreign-born population in the U.S. By providing unlimited calling to Vietnam, Vonage offers these consumers an affordable alternative to calling cards and a flexible, simple way to keep in touch with friends and family back home," said Michael Tempora, Senior Vice President of Product Management at Vonage. "The addition of unlimited calling to any phone in Vietnam and to mobiles in South Korea, demonstrates Vonage's commitment to offering best-in-class international calling solutions for all our customers." The plan is offered for a low rate of $9.99 per month for the first three months, and $25.99 thereafter. Taxes and fees and a one year agreement are required. For more information about all of Vonage's international calling solutions, please visit www.vonage.com/world-calling-plans/. About VonageVonage (NYSE: VG) is a leading provider of communications services connecting individuals through cloud-connected devices worldwide. Our technology serves approximately 2.4 million subscribers. We provide feature-rich, affordable communication solutions that offer flexibility, portability and ease-of-use. Our Vonage World plan offers unlimited calling to more than 60 countries with popular features like call waiting, call forwarding and visual voicemail —for one low monthly rate. Vonage's service is sold on the web and through regional and national retailers including Wal-Mart, Best Buy, Kmart and Sears, and is available to customers in the U.S. ( www.vonage.com), Canada ( www.vonage.ca) and the United Kingdom ( www.vonage.co.uk). Vonage Holdings Corp. is headquartered in Holmdel, New Jersey. Vonage® is a registered trademark of Vonage Marketing LLC, owned by Vonage America Inc. To follow Vonage on Twitter, please visit www.twitter.com/vonage. To become a fan on Facebook, go to www.facebook.com/vonage. To subscribe on YouTube, visit www.youtube.com/vonage. 1Unlimited calling and other services are for residential plans and are based on normal residential, personal, non-commercial use. A combination of factors is used to determine abnormal use including but not limited to the number of unique numbers called, calls forwarded, minutes and other factors. See Vonage Reasonable Use Policy and Terms of Service on vonage.com. Extensions™ calls made from mobiles use airtime and may incur surcharges, depending on the user's mobile plan.