AT&T is the defendant in the first suit filed by Encrypted Cellular Communications, a new enforcement entity associated with CopyTele. The case asserts a single patent related to providing secure communications over a network (7,430,665) that CopyTele acquired in October 2013. AT&T’s encrypted mobile voice product is accused of infringing the patent-in-suit. 5/6, Northern District of Texas, 3:14cv01678