June 9, 2009 - j2, which provides Internet-based fax and other telecom services, has filed a patent infringement lawsuit in California Central District Court against its competitor OneSuite, claiming infringement of j2's patent related to sending and receiving messages using the Internet and/or telephone systems. OneSuite provides prepaid long distance, plus fax and other telecom services.
j2 has filed similar patent infringement lawsuits against Protus, Venali, and other firms.