Ribbon and SURF Achieve Interoperable 2x400GbE Transport via Single 800G Wavelength over Brownfield 1,650km Amsterdam-Geneva Link

"We are proud to collaborate with our partner Ribbon in this successful and innovative trial, which pushes the boundaries of our current fiber and shows us what is technically possible with Ribbon's equipment," said Harold Teunissen, Director Network & Campus at SURF. "This trial signifies a crucial step forward as we gear up our network to cater to the future needs of scientific research and education in the Netherlands and beyond."

The trial demonstrated a number of Ribbon's advanced transport solutions:

"We're excited to work with SURF to demonstrate how they can deliver advanced transport services to their research and education partners over the existing infrastructure," said Sam Bucci, COO and EVP, Ribbon. "We're proud to deliver innovative solutions that contribute to the advancement of science."

About Ribbon
Ribbon Communications (Nasdaq: RBBN) delivers communications software, IP and optical networking solutions to service providers, enterprises and critical infrastructure sectors globally. We engage deeply with our customers, helping them modernize their networks for improved competitive positioning and business outcomes in today's smart, always-on and data-hungry world. Our innovative, end-to-end solutions portfolio delivers unparalleled scale, performance, and agility, including core to edge software-centric solutions, cloud-native offers, leading-edge security and analytics tools, along with IP and optical networking solutions for 5G. We maintain a keen focus on our commitments to Environmental, Social and Governance (ESG) matters, offering an annual Sustainability Report to our stakeholders. To learn more about Ribbon, please visit rbbn.com.

Important Information Regarding Forward-Looking Statements
The information in this release contains forward-looking statements regarding future events that involve risks and uncertainties. All statements other than statements of historical facts contained in this release, including those regarding the expected benefits from use of Ribbon Communication's products, are forward-looking statements. The actual results of Ribbon Communications may differ materially from those contemplated by the forward-looking statements. For further information regarding risks and uncertainties associated with Ribbon Communications' business, please refer to the "Risk Factors" section of Ribbon Communications' most recent annual or quarterly report filed with the SEC. Any forward-looking statements represent Ribbon Communications' views only as of the date on which such statement is made and should not be relied upon as representing Ribbon Communications' views as of any subsequent date. While Ribbon Communications may elect to update forward-looking statements at some point, Ribbon Communications specifically disclaims any obligation to do so.

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