LiveVox Results Presentation Deck

26 Long-Term Operating Model % of Revenue Gross Margin S&M R&D G&A Adjusted EBITDA PROPRIETARY 2018 61% 19% 16% 12% 14% 2019 63% 23% 16% 11% 14% 2020 65% 26% 19% 12% 8% O LiveVox 2023 2021 61% 34% 23% 17% (13%) 2022 65% 37% 20% 19% (11%) Leverage fixed costs benefits from public cloud Continued investment to drive topline growth Product-driven company requires continued investment Economies of scale Long-Term Model 75%+ ~30-35% -15% ~5% ~20%+ LIVEVOX

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