2025 Q4 Ribbon Communications Fourth Quarter and Full Year 2025 Financial Results Conference Call Q4 2025 Press Release 406.8 KB Q4 2025 Earnings Presentation 1.5 MB Q4 2025 Supplemental 101.1 KB Q3 Ribbon Communications Third Quarter 2025 Financial Results Conference Call Q3 2025 Press Release 408.5 KB Q3 2025 Earnings Presentation 997.8 KB Q3 2025 Supplemental 94.3 KB Q2 Ribbon Communications Second Quarter 2025 Financial Results Conference Call Q2 2025 Press Release 251.4 KB Q2 2025 Earnings Presentation 892.3 KB Q2 2025 Supplemental 92.1 KB Q1 Ribbon Communications First Quarter 2025 Financial Results Conference Call Q1 2025 Press Release 245.8 KB Q1 2025 Earnings Presentation 740.9 KB Q1 2025 Supplemental 89.7 KB Proxy Statements Filing date View Apr 14, 2025 View HTML 0001104659-25-034540.pdf 0001104659-25-034540.rtf 0001104659-25-034540.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Apr 02, 2025 View HTML 0001104659-25-031033.pdf 0001104659-25-031033.rtf 0001104659-25-031033.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA Form 10-Q/K Filing date View Feb 26, 2026 View HTML 0001708055-26-000012.pdf 0001708055-26-000012.rtf 0001708055-26-000012.xls Oct 23, 2025 View HTML 0001708055-25-000035.pdf 0001708055-25-000035.rtf 0001708055-25-000035.xls