Audio Messaging Inc., a subsidiary of publicly traded Quest Patent Research Corporation (QPRC), has filed its first litigation, suing BBK Electronics (OPPO) (2:21-cv-00380), Xiaomi (2:21-cv-00381), and ZTE (2:21-cv-00379) in the Eastern District of Texas over the provision of devices (i.e., laptops, smartphones, tablets, and/or wearables) that support sending audio messaging. The plaintiff asserts two patents generally related to an audio message that can be transmitted to another device while being associated with the user who recorded the message. Prior RPX coverage concerning QPRC’s acquisition of this portfolio suggested that this campaign might be coming.