Exhibit 99.1 8x8, Inc. Announces Second Quarter Fiscal Year 2026 Financial Results Year-over-year service and total revenue growth 19th consecutive quarter of positive cash flow from operations Strong usage trends drive record platform engagement 8x8 Workforce Management integrated with Contact Center as Innovation Accelerates CAMPBELL, CA, November 4, 2025 – 8x8, Inc. (NASDAQ: EGHT), a leading global business communications platform provider, today reported financial results for the second quarter of fisca ...