One of the six campaigns launched by Texas monetization firm IP Edge LLC over a former Siemens patent has now already seen a second round of suits filed. Last week Wave Linx LLC hit Avaya (1:19-cv-00607), Dialpad (1:19-cv-00608), and Polycom (1:19-cv-00609) over the provision of online meeting systems—Avaya’s Equinox Meetings Online, UberConference by Dialpad, and Polycom’s RealPresence Meetings, respectively—that provide notifications when a user enters or exits a meeting. The sole patent asserted in this campaign broadly concerns transmitting notifications from the telephone system to a browser using “networking protocols”.