Vonage announced the grant of U.S. Pat. No. 8,223,720 titled "Systems and Methods for Handoff of Mobile Telephone Call in a VoIP Environment." This invention allows a mobile handset user who is on a voice-over-IP call to seamlessly move between multiple wireless data connections without dropping the call. The '720 patent was granted approximately 7 months after filing under the U.S. Patent and Trademark Office's new Prioritized Examination Procedure.

The grant of the '720 patent reflects Vonage's ongoing innovation supporting its mobile growth initiative, including its new Vonage Mobile app for Android and iPhone smartphones which enables free high-definition calls and texts to other app users worldwide, as well as low-cost international calls to phones without the VoIP app. This is Vonage's third patent to issue in six weeks (see previous release), reflecting Vonage's commitment to develop and protect useful and innovative technologies to better serve the needs of Vonage's customers.

"Our recent success obtaining this and other patents is a result of the focused efforts of our technical teams and the sound execution of our intellectual property strategy," said Chief Legal Officer Kurt M. Rogers.