Callstat Solutions LLC has filed another suit in its latest litigation campaign, accusing NEC (6:21-cv-01255) of infringing a single patent generally related to “dynamically indicating a status of a communication system” through a graphical user interface. The NPE accuses NEC of infringement through the provision of the UC700 Desktop Client, with features for changing the color of a “status icon” based on a user’s availability at issue. The patent is among thousands assigned by Intellectual Ventures LLC (IV) to Hanger Solutions, LLC in December 2019.