Exhibit 99.1 PRESS RELEASE TTEC Announces Third Quarter 2024 Financial Results Third Quarter 2024 Revenue was 529.4Million,down12.2PercentOperatingIncomeof12.9 Million or 2.4 Percent of Revenue (Operating Income of 34.1Millionor6.4PercentofRevenueNon−GAAP)NetLossof19.0 Million or negative 3.6 Percent of Revenue (Net Income of 5.4Millionor1.0PercentofRevenueNon−GAAP)AdjustedEBITDAwas50.3 Million or 9.5 Percent of Revenue Fully Diluted Net Loss Per Share of $0.40 (Net Incom ...