VoIP provider Vonage faces a mammoth problem after a US District Judge barred it from using a fundamental internet telephony technology. The action, brought by Verizon, is over VoIP technology used by Vonage to power its service.
Judge Claude Hilton has said the injunction could be implemented in two weeks, depending on whether or not Vonage is able to appeal against other patent-rulings in this far-reaching case. Verizon has argued that it would suffer damage if its patented technology continued to be used by Vonage.
In a statement, Vonage chief executive Mike Snyder said: "Despite this obvious attempt by Verizon to cripple Vonage, the litigation will not stop Vonage from continuing to provide quality VoIP service to our millions of customers."
American Technology Research analyst Albert Lin told Reuters : "I don't think it's going to kill Vonage," but Lin did say that the ruling could considerably harm the company, since it is less than a year since it publicly floated on the stock exchange.
Vonage shares nosedived 26 per cent in light of the ruling. The company has confirmed it is working to redesign its service as a result of the injunction.
Three 8 March rulings against Vonage for Verizon patent infringements already means Vonage has to pay $58 million (£29.53 million) in damages and 5.5 per cent royalties on future sales.
In an official statement released at the time, Verizon said: "We are proud of our inventors and pleased the jury stood up for the legal protections they deserve".
Vonage said its customers would see no change to their service.
Get daily insight, inspiration and deals in your inbox
Get the hottest deals available in your inbox plus news, reviews, opinion, analysis and more from the TechRadar team.
Dan (Twitter, Google+) is TechRadar's Former Deputy Editor and is now in charge at our sister site T3.com. Covering all things computing, internet and mobile he's a seasoned regular at major tech shows such as CES, IFA and Mobile World Congress. Dan has also been a tech expert for many outlets including BBC Radio 4, 5Live and the World Service, The Sun and ITV News.