Ribbon Communications Inc. reported third quarter 2025 revenue of $215.4 million, up from $210.2 million in the third quarter of 2024. Product sales were $110.0 million compared to $112.2 million for the same period last year, while service sales increased to $105.4 million from $98.1 million. GAAP operating income was $3 million, compared to a loss of $1 million in the prior-year quarter. Non-GAAP adjusted EBITDA was $29 million, down from $30 million a year earlier. GAAP gross margin was 50.1%, compared to 52.1% in the third quarter of 2024. Non-GAAP gross margin was 52.6%, versus 55.3% in the previous year. Year-to-date revenue rose 6%. Sales in the IP Optical Networks segment increased 11% year over year in the quarter.
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