Klausner Technologies [NPE] filed suit against MetroPCS Communications, alleging that MetroPCS’s messaging services infringe two patents related to visual voicemail.  Klausner has filed over 35 prior suits against defendants including 8 x 8, Apple, Alcatel-Lucent, Cisco, HP, HTC, Microsoft, Motorola Mobility, NEC, Panasonic, Qwest, RIM, Samsung, Toshiba, Verizon, and Vonage.  Judah Klausner, the founder of Klausner Technologies, and Robert Hotto are the named inventors of the patents-in-suit.  1/26, Eastern District of Texas, 6:2012cv00042.