Klausner Goes After Oracle Over Visual Voicemail Patent

Klausner says it has 25 patents in the U.S., Europe and Asia that cover visual voicemail and has, so far, licensed its research to 34 licensees. Among them are "major U.S. and European mobile operators, international cell phone manufacturers, cable/VoIP (Voice over Internet Protocol) providers as then as providers of Visual Voicemail products and services for the enterprise market," Klausner said. Among the prominent licensees of the visual voicemail patents are AOL, Vonage, also as AT&T and Apple.

Familiar name

Klausner may not be a familiar name, however some readers may remember that the company sued Apple and the iPhone for visual voicemail patent infringement in December of 2007. Back at that time, Klausner exactly mentioned U.S. patents 5,572,576 and 5,283,818 as being infringed. That lawsuit was, in large parts, reminiscent of the NTP email patent infringement against RIM, which forced the Blackberry maker to settle for $612.5 million in damages and royalties.