Publicly traded NPE VoIP-Pal.com, Inc. has added Twitter (2:16-cv-02338) to its sole litigation campaign, alleging that the company’s direct message, reply, and re-tweet features infringe two related patents (8,542,815; 9,179,005) generally relevant to routing messages between private and public networks based on stored caller profiles. VoIP-Pal began its campaign in February, accusing Apple (2:16-cv-00260) of infringing the same two patents through its messaging features, including iMessage, and AT&T and Verizon (2:16-cv-00271) through their respective landline and wireless VoIP and messaging services. The NPE has not provided a rationale for joining the two carriers in a single action.