I'll research this company before writing the profile.
Let me verify the litigation details and corporate structure.
Ribbon Communications Operating Company, Inc. ("RCOC") is the principal U.S. operating subsidiary of Ribbon Communications Inc. (Nasdaq: RBBN), a public Delaware corporation headquartered at 6500 Chase Oaks Blvd., Plano, Texas. RCOC is the successor to the former Sonus Networks, Inc. operating entity. The Ribbon name dates to October 2017, when Sonus Networks (founded 1997, then based in Westford, Massachusetts) and GENBAND US LLC completed a merger of equals; the combined company renamed itself Ribbon Communications Inc. and began trading as RBBN in November 2017. Aggregators report roughly 3,080 employees and FY2025 revenue near $845 million (TTM about $798 million as of mid-2026); it is a small-cap Nasdaq issuer.
Products / services. Ribbon is an operating company selling communications technology to telecom service providers and enterprises across two segments. Cloud and Edge covers voice-over-IP infrastructure — session border controllers, media gateways, softswitches, call feature servers — plus VoLTE/VoNR and cloud-native voice software, the Kandy CPaaS/UCaaS platform, network analytics, and AIOps/automation tools. IP Optical Networks, added through the March 2020 acquisition of ECI Telecom, supplies IP routing, switching, and optical transport equipment. Earlier acquisitions include Edgewater Networks (2018, enterprise edge security) and Anova Data (2019, analytics). It has real product and service revenue and is not an NPE.
Patent-litigation posture. The tracked data show one case as plaintiff and zero as defendant, so Ribbon appears as an active enforcer of patents inherited from Sonus and GENBAND rather than as an NPE or a passive target. Its filings were made in the Eastern District of Texas, Marshall Division, a plaintiff-friendly venue, and its dispute with Metaswitch was effectively two-way: Metaswitch counterclaimed for infringement of ten patents.
Notable cases. The tracked case, Sonus Networks, Inc. et al. v. Metaswitch Networks Ltd. et al. (E.D. Tex., filed April 18, 2018), sought enhanced damages for continued infringement of seven ex-GENBAND patents after an earlier jury verdict, plus false-advertising claims. It followed two March 8, 2018 E.D. Tex. suits asserting ten ex-Sonus patents, an earlier GENBAND v. Metaswitch trial win (about $8.9 million plus ongoing royalties), a Metaswitch antitrust complaint in the S.D.N.Y., and trade-secret claims. Docket records show a post-mediation settlement and dismissal in 2019. The disputes reflect direct vendor overlap in session border controllers and softswitches.