I'll research Aastra to verify its profile.
Let me verify the VirnetX litigation context.
Aastra Technologies Limited (commonly "Aastra"; TSX: AAH) was a Canadian telecommunications equipment maker founded in 1983 in Toronto and headquartered in Concord, Ontario. It was a public company until Mitel Networks Corporation completed its acquisition on January 31, 2014, in a cash-and-stock deal valued at roughly US$400 million (about US$80 million cash plus 44.2 million Mitel shares). Aastra reported revenue of roughly C$834 million in 2009 and around 1,690–2,000 employees in the late 2000s; Mitel subsequently retired the Aastra brand. Aastra no longer operates as an independent entity.
Products / operations: Aastra was an operating company, not an NPE. It developed and sold enterprise and residential communications equipment: IP and traditional deskphones, cordless and screen telephones, enterprise PBX systems (notably the MX-ONE platform acquired with Ericsson's enterprise PBX division in 2008), network access terminals, unified-communications applications, call-center and video-conferencing solutions, and digital video encoders/decoders/gateways. It grew largely through acquisitions, absorbing assets from Nortel, Lucent, Ericsson, EADS Telecom, DeTeWe and Ascom, and sold residential phones in the US under the Sonecor/Bell brand.
Patent-litigation posture: Aastra appears in the case data as a defendant only (0 plaintiff cases, 1 defendant case), consistent with an operating company defending against an outside patent holder rather than asserting its own portfolio. The sole tracked matter is VirnetX Inc. v. Aastra et al., filed August 11, 2010 in the U.S. District Court for the Eastern District of Texas, Tyler Division — a plaintiff-friendly venue where VirnetX filed a series of coordinated patent suits.
Case context: In that action VirnetX asserted secure-communications patents (including U.S. Patent Nos. 6,502,135; 6,839,759; 7,188,180; 7,418,504; and 7,490,151) against Aastra USA, Inc. and Aastra Technologies Ltd. alongside Apple, Cisco, and NEC. VirnetX's own investor filings later state that it holds patent-license agreements with Aastra USA, indicating Aastra settled and took a license rather than proceeding to judgment.