RNG Q4 2025 Earnings Presentation

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©2026 RingCentral Non-GAAP free cash flow is defined as GAAP net cash provided by operating activities adjusted for capital expenditures including purchases of property and equipment and capitalized internal-use software. We believe information regarding Non-GAAP free cash flow provides useful information to investors in understanding and evaluating the strength of liquidity and available cash. Non-GAAP free cash flow margin is defined as Non-GAAP free cash flow divided by total GAAP revenues. We have included Non-GAAP subscriptions gross margin, Non-GAAP other gross margin, Non-GAAP operating margin, Non-GAAP income from operations, Non-GAAP adjusted EBITDA, Non-GAAP net income , Non-GAAP net income per diluted share, Non-GAAP free cash flow and Non-GAAP free cash flow margin in this presentation because they are key measures used by us to understand and evaluate our operating performance and trends, to prepare and approve our annual budget, and to develop short and long-term operational plans. In particular, the exclusion of certain expenses and cash flow items in calculating Non-GAAP subscriptions gross margin, Non-GAAP other gross margin, Non-GAAP operating margin, Non-GAAP income from operations, Non-GAAP adjusted EBITDA, Non-GAAP net income, Non-GAAP net income per diluted share, Non-GAAP free cash flow, and Non-GAAP free cash flow margin provide useful measure for period-to-period comparisons of our business. Although Non-GAAP subscriptions gross margin, Non-GAAP other gross margin, Non- GAAP operating margin, Non-GAAP income from operations, Non-GAAP adjusted EBITDA, Non-GAAP net income, Non-GAAP net income per diluted share, Non-GAAP free cash flow and Non-GAAP free cash flow margin are frequently used by investors in their evaluations of companies, these non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation or as a substitute for financial information presented in accordance with GAAP. Because of these limitations, these non-GAAP financial measures should be considered alongside other financial performance measures. For a reconciliation of our forecasted non-GAAP operating margin and free cash flow, see “Reconciliation of Forecasted Operating Margin GAAP Measures to Non-GAAP Measures.” We have not reconciled our forecasted non-GAAP EPS to its respective forecasted GAAP measure because we do not provide guidance on it. Safe Harbor and Non -GAAP Measures We do not provide guidance on forecasted GAAP EPS because of the inherent uncertainty and complexity involved in forecasting the intercompany remeasurement gain (loss), gain (loss) associated with investments, gain (loss) on early debt extinguishment, and provision (benefit) from income taxes, which could be significant reconciling items between the non-GAAP and respective GAAP measures. The intercompany remeasurement gain (loss) is affected by the movement in various exchange rates relative to the U.S. Dollar, which is difficult to predict and subject to constant change. We do not provide guidance on gain (loss) associated with investments as it is based on future share prices, which are difficult to predict and subject to inherent uncertainties. We do not provide guidance on gain (loss) on early debt extinguishment as it is based on future interest rates, which are difficult to predict and are subject to inherent uncertainties. We do not provide guidance on forecasted GAAP tax rates as we do not forecast discrete tax items as they are difficult to predict. We utilized a projected long-term tax rate in our computation of the non-GAAP income tax provision. For fiscal 2026, we have determined the projected non-GAAP tax rate to be 22.5%. Accordingly, a reconciliation of the non-GAAP financial measure guidance to the corresponding GAAP measure is not available without unreasonable effort. Reconciliations of our non-GAAP financial measures to their most directly comparable GAAP measures has been provided in the financial statement tables included in this presentation . Our reported results also include our annualized exit monthly recurring subscriptions (ARR), as well as Net Monthly Subscriptions Dollar Retention Rate. We define our ARR as our monthly recurring subscriptions (MRR) multiplied by 12. Our MRR equals the monthly value of all customer recurring charges contracted at the end of a given month. We believe this metric is a leading indicator of our anticipated subscriptions revenue. We define our Net Monthly Subscription Dollar Retention Rate as (i) one plus (ii) the quotient of Dollar Net Change divided by Average Monthly Recurring Subscriptions. We calculate dollar net change as the quotient of (i) the difference of our monthly recurring subscriptions at the end of a period minus our monthly recurring subscriptions at the beginning of a period minus our monthly recurring subscriptions at the end of the period from new customers we added during the period, (ii) all divided by the number of months in the period. We define our average monthly recurring subscriptions as the average of the monthly recurring subscriptions at the beginning and end of the measurement period.

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©2026 RingCentral Durable TAM; Deep Defensible Moat Consumers largely calling or texting their business providers – interactions increasing Carrier-grade global real-time communications platform built over two decades — hard to replicate Top of B2C Communication Funnel 500K+ customers and millions of end users + billions of calls and SMS minutes = fuel for AI Good position to apply Agentic Voice AI during every phase of a B2C interaction – before, during, and after the call Integrated Agentic Voice AI Portfolio Flywheel of AI Receptionist (AIR), AI Virtual Assistant (AVA), AI Conversation Expert (ACE) working in concert Usage-based pricing Strong Early AI Traction within the Base ~10% of ARR from customers using at least one monetized AI product Improved wallet share, retention, and ARPU Strong Financial Model Compelling FCF and FCF/share allowing for capital return (deleveraging, share buybacks, dividends) Why RingCentral 1 2 4 5 3

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5 ©2026 RingCentral5 ©2026 RingCentral Leader in Agentic Voice AI #1 In UCaaS Revenue Market Share (1) $530M Annual Free Cash Flow Quarterly record $5.81 Free cash flow per share $4.36 Non-GAAP EPS >99% Monthly net retention rate 500K+ Customers in 46 countries AI ~10% ARR RCAI (RingCentral AI-utilizing customers) (2) $2.5B Total revenue up 5% YoY $250M+ Committed to Innovation (3) Unless otherwise noted, company metrics as of Q4’25. 1. Source: Synergy Research Group, UC Market Tracker, Q3 2025. 2. % of total ARR with at least one paid AI product = RCAI (RingCentral AI-utilizing customers) 3. Reflects non-GAAP research and development spend plus capitalized software for twelve months ending December 31, 2025.

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6 ©2026 RingCentral6 ©2026 RingCentral $644M Total Revenue 22.8% Non-GAAP Operating Margin Q4 Financial Highlights Up 140 bps Y/Y4.8% Y/Y $1.18 Non-GAAP EPS $0.26 GAAP EPS Up 21% Y/Y $622M Subscription Revenue 5.5% Y/Y Up from ($0.08) in Q4 2024 6.6% GAAP Operating Margin Up 400 bps Y/Y $126M Free Cash Flow 1.7x Q4’25 Net Debt to Adj. EBITDA Up 13% Y/Y Lower leverage $1.43 Free Cash Flow per share Up 20% Y/Y

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7 ©2026 RingCentral7 ©2026 RingCentral This gra phic was published by Gart ner, Inc. a s part of a lar ger researc h document and should be e valuat ed in t he cont ext of t he ent ire document . The Gar tner docum e nt is available upon requ es t f rom RingCentr al, Inc. Gar tner does not endorse any ve ndor, pr oduct or service depict ed in it s researc h publications and does n ot advise t echn ology us er s to s e lect only those vendor s with the high es t r atings or ot her designation . Gar tner r es e arch public ations consis t of th e opin ions of Gar tner’s ® r es e arch or ganizat ion and s hould not be con s tr ued as s t atement s of fac t. Gart ner® disclaims all warr antie s , e xpress e d or implied, wit h r es pe ct to this researc h, inc luding any warr antie s of m e rcha ntabilit y or fitne s s f or a pa rtic ular purpose. Business Communications Leader Leader in Gartner 2025 Magic Quadrant for UCaaS Worldwide #1 Market Share in UCaaS by Synergy based on seats Sourc e: Syne rgy Res e arch Group UC Market Tracker, Q3 2025 ~40 % Cis co 8x8 Zoom Mic ros oft RingCentral

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8 ©2025 RingCentral Heavy penetration into b2c verticals See slide 141 Others Healthcare Financial Services Personal & Consumer services Retail & Consumer Products Transportation, Travel, & Leisure Manufacturing High Tech Construction & Real Estate Voice is mission critical in B2C verticals

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9 ©2026 RingCentral©2026 RingCentral Cloud Phone Multi-modal UC+CC Agentic AI Cloud Phone, Fax SMS Analytics 1.0 plus: Video Meetings & Events Messaging & Collaboration Contact Center 2.0 plus: AI Receptionist (AIR) AI Virtual Assistant (AVA) AI Conversation Expert (ACE) Workforce Engagement Management (RingWEM) Leading the future of business communications with Agentic Voice AI 1.0 2.0 3.0

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Other Business Applications RingCentral sits the most upstream ACE AI Conversation Expert RingEX Business Phone AIR AI Receptionist AVA AI Virtual Assistant RingCX Contact Center

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By 2030, seventy percent of customer service organizations will rely on composable, AI- driven platforms 70% By 2026, forty percent of G2000 job roles will involve working with AI agents 40% Agentic AI is the biggest global shift since the Internet ©2026 RingCentral

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13 ©2026 RingCentral13 ©2026 RingCentral AI Receptionist (AIR) 24/7 voice AI agent Before AI Virtual Assistant (AVA) Real-time AI assistance During AI Conversation Expert (ACE) Conversation intelligence After AI for every interaction Leading with agentic voice AI

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14 ©2026 RingCentral14 ©2026 RingCentral Never miss a call Book appointments Capture leads Offer self-service 24/7 Automate Gain productivity Improve service levels Drive quality interactions Manage teams effectively Assist Tighten business operations Drive strategic decisions Staff efficiently Improve CSAT Analyze AI outcomes with every interaction ACE AVA AIR

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15 ©2026 RingCentral RingCentral Agentic AI Platform AVA AIR ACE The power of “AND” ✓ Voice-first omnichannel ✓ Works across entire journey ✓ Provides insights ✓ Takes actions Automate AssistAnalyze ©2026 RingCentral

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16 ©2026 RingCentral16 ©2026 RingCentral Achieved $100M+ ARR From new products Innovation in 2025 3,000+ Custome rs 5,800+ Custome rs $100M+ AI Receptionist (AIR) AI Virtual Intelligent (AVA) AI Conversation Expert (ACE) RingCX RingCentral Events 2024 20252023 ~50M

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17 ©2026 RingCentral17 ©2026 RingCentral 10% of total ARR is with AI attach More than doubled in 2025 3,000+ Custome rs 5,800+ Custome rs ~10% of ARR AI Receptionist (AIR) AI Virtual Intelligent (AVA) AI Conversation Expert (ACE) 2024 2025 % of total ARR with at least one paid AI product = RCAI (RingCentral AI-utilizing customers) 2023

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18 ©2026 RingCentral18 ©2026 RingCentral New Product Customer Growth AI Receptionist (AIR) AI voice agent that automatically answers customers inquiries and transfers calls RingCX AI-first contact center AI Conversation Expert (ACE) AI conversational insights (formerly RingSense) 5,800+ Custome rs 8,300+ Custome rs 700+ Custome rs 1,500+ Custome rs 2,000+ Custome rs 4,500+ Custome rs 40%+ Sequential Growth 100%+ YoY Growth 120%+ YoY Growth 3Q25* 4Q25 4Q24 4Q25 4Q24 4Q25 *Launched in 1Q25

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19 ©2026 RingCentral19 ©2026 RingCentral NPI Core FY24 FY25 Innovation (R&D) spend split ©2026 RingCentral Rapid AI-first Product Innovation ~60% of R&D towards New product innovation We are spending a majority of our R&D on NPI NPI = new product initiatives FY26

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10-20% Average handle time reduction* Enterprise (100+ employees) Customer Breadth Unless otherwise no ted, company metrics as of Q4’25 ©2026 RingCentral2020 GSP $1 Billion+ ARR growing in double digits across SB and GSP Small Business (<100 employees) • Approximately 30% of ARR • Double digit growth • Payback period <18 mo • Strength in Healthcare, FinServe, Retail, Travel & Transportation • Represents >10% of ARR • Double digit growth • Expands international reach • Payback period <18 mo • Strong activity >$1m+ TCV • Strong in key verticals • Strong RingCX attach in >$1m+TCV

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$403 ©2026 RingCentral Total Revenue ($M) Free Cash Flow ($M and % of total rev) Operating Profit ($M and % of total rev) Continued operating income improvement driven by: ✓ Growth in core UCaaS and new AI-led products ✓ Operating leverage ✓ Continued expense discipline ✓ Greater S&M efficiency ✓ Leveraging AI and automation to drive productivity Revenue & Profit 1,988 2,202 2,400 2,515 FY’22 FY’23 FY’24 FY’25 105 324 403 530 FY’22 FY’23 FY’24 FY’25 5.3% 14.7% 16.8% 246 420 504 566 FY’22 FY’23 FY’24 FY’25 12.4% 19.1% 21.0% 22.5% 21.1% 23 Strong Financial Profile 1. 20 26E represen ts midp oint of g uid ance fo r total reven ue, ope rating profi t and free cash flow as of Feb ruary 19, 20 26. 2. Ope rating profi t i s non-GAAP . Non-GAAP op erating p rofit, non-GAAP op erating margi n and free cash flow are non -GAAP fi nancial measures, see appe ndix for re concil iation to the most comparabl e GAAP metri cs. FY’26E 4%-5% FY’26E 23.0-23.5% 580- 600 FY’26E

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$403 Non-GAAP EPS Stock-Based Compensation (% of total revenue) 24 Increasing FCF/share and EPS while Reducing SBC & Share Count 1. 20 26E represen ts midp oint of g uid ance fo r stock-based compe nsation (SB C) as % of total revenue , fully di luted share count and no n-GAAP EP S, as o f Feb ruary 19, 20 26. In-year grants Prior year grants FCF/share Fully Diluted Share Count (in millions of shares) $1.99 $3.23 $3.70 $4.36 2022 2023 2024 2025 2022 2023 2024 2025 96.2 96.6 94.5 91.2 2026E 86.5-87 2026E $4.76 - $4.97 ©2026 RingCentral 12% 8% 20% 11% 9% 20% 10% 4% 14% 7% 4% 11% 2023 2024 20252022 2022 2023 2024 2025 $1.09 $3.35 $4.26 $5.81 2026E $6.67 - $6.94 2026E 6% 3% 9% Target: Reduce SBC to 3-4% of revenue in 3-4 years

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25 ©2026 RingCentral25 ©2026 RingCentral Expanding FCF & Reducing Share Grants FCF vs. Shares Granted 1 ($ in million) FCF ($M) Shares Granted ($M) 1. 20 26E represen ts midp oint of g uid ance fo r FCF ($), estimate of S hares Gran ted ($), as of Feb ruary 1 9, 20 26. 836 438 439 253 161 150 80 105 324 403 530 580-600 FY21 FY22 FY23 FY24 FY25 FY26E

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$403 ©2026 RingCentral 26 Improving GAAP Financial Performance GAAP EPS (USD) 2022 2023 2024 2025 (9.23) (1.74) 0.48 (0.63) Operating Margin (GAAP) (% of total rev) 2022 2023 2024 2025 (32.7%) (9.0%) 0.1% 4.8% 2026E 8.6% – 9.6% Target: Improve GAAP Operating Margin to ~20% in 3-4 years

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©2026 RingCentral Strong Balance Sheet Improving leverage ratio Net Debt to Adj. EBITDA 27 Se e App endi x for leverag e rati o cal culatio n. Se e Fo rms 10K an d 10Q for ad diti onal detai l. BB+ (Outlook Positive) Baa2 (Stable Outlook) BB+ (Stable Outlook) Credit Ratings Upgraded in 2025 Reducing Debt Gross Debt ($B) Q4’22 Q4’23 Q4’24 Q4’25 4.3x 2.6x 2.2x 1.7x Q4’26EQ4’22 Q4’23 Q4’24 Q4’25 1.64 1.55 1.53 1.26 Q4’26E 1.00 Approaching investment grade

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$403 ©2026 RingCentral 28 Initiating Dividends Initiating Dividends in 2026 $0.075 ~1.0% Payout per share (quarterly) Implied Dividend Yield (annual) QuarterlyPayout frequency Driving predictable returns to shareholders

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©2026 RingCentral (1) See appendix f or recon ciliation t o GA AP measure . Q1 2026 Subscriptions Revenue $620 to $625 mil. Subscriptions Revenue Growth Y/Y 5.1% to 5.9% Total Revenue $640 to $645 mil. Total Revenue Growth Y/Y 4.6% to 5.4% GAAP Operating Margin 7.1% to 8.2% Stock-based Compensation $60 to $65 mil. Non-GAAP Operating Margin(1) 22.8% to 22.9% Non-GAAP EPS(1) $1.16 to $1.19 Fully Diluted Share Count 87 mil. to 87.5 mil. ©2026 RingCentral Q1 2026 Guidance 29

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©2026 RingCentral FY 2026 Subscriptions Revenue Growth Y/Y 4.5% to 5.5% y/y Total Revenue Growth Y/Y 4.0% to 5.0% y/y GAAP Operating Margin 8.6% to 9.6% Stock-based Compensation $240 to $250 mil. Non-GAAP Operating Margin(1) 23.0% to 23.5% Non-GAAP EPS(1) $4.76 to $4.97 Fully Diluted Share Count 86.5 mil. to 87 mil. Net cash provided by operating activities $675 to $690 mil. Less: Capitalized expenditures $90 to $95 mil. Free Cash Flow $580 to $600 mil. (1) See appendix f or recon ciliation t o GA AP measure . ©2026 RingCentral30 FY 2026 Guidance

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$ Metric Y/Y Growth Revenue Subscriptions Revenue $622M 6% Total Revenue $644M 5% ARR Total $2,673M 7% Customer ARR by Size1 Mid-Market and Enterprise $1,654M 6% Enterprise $1,122M 5% Q4 2025 Financial Highlights 32 ©2026 RingCentral 1) Our reported result s also include our annualized exit mont hly recurring subscriptions, mid-market and enterprise annualized exitmonthly recurring subscript ions, ent erprise annualized exit monthly recurring subscriptions, and net monthly subscription dollar retention rate. We define our annualized exit monthly recurring subscript ions as our monthly recurring subscriptions mult iplied by 12. Our monthly recurring subscriptions equal the monthly value of all customer recurring charges cont ract ed at the end of a given month. We believe this metric is a leading indicator of our anticipated subscript ions revenue. We calculate mid-market and enterprise annualized exit monthly recurring subscript ions in thesame manner as we calculate our annualized exit mont hly recurring subscriptions, except that only customer subscriptions f romcustomers generat ing $25,000 or more in annual recurring revenue are included. We calculate enterprise annualized exit mont hly recurring subscriptions in thesame manner as we calculate our annualized exit mont hly recurring subscriptions, except that only customer subscriptions f rom customers generating $100,000 or more in annual recurring revenue are included. We define our net mont hly subscription dollar retention rate as (i)one plus (ii)the quotient of dollar net change divided by average monthly recurring subscriptions. We calculate dollar net change as the quotient of (i) the dif ference of our monthly recurring subscript ions at the end of a period minus our monthly recurring subscriptions at the beginning of a period minus our monthly recurring subscript ions at the end of the period from new customers we added during the period, (ii) all divided by the number of months in the period. We define our average monthly recurring subscriptions as the average of the monthly recurring subscript ions at the beginning andend of the measurement period.

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33 ©2026 RingCentral Net debt to adjusted EBITDA ($millions) Q1'22 Q2'22 Q3'22 Q4'22 Q1'23 Q2'23 Q3'23 Q4’23 Q1’24 Q2’24 Q3’24 Q4’24 Q1’25 Q2’25 Q3’25 Q4’25 Adj. EBITDA $65.5 $72.7 $87.0 $92.7 $112.3 $125.0 $127.8 $138.0 $142.8 $145.8 $149.0 $152.8 $155.1 $161.5 $167.8 $168.7 LTM Adj. EBITDA 317.9 364.7 416.9 457.8 503.1 533.6 554.4 575.7 590.4 602.7 618.4 637.2 653.1 Total Debt 1,638.4 1,639.5 1,578.8 1,801.3 1,545.5 1,541.4 1,537.3 1,533.2 1,529.1 1,363.7 1,260.8 1,256.9 1,253.8 Total Cash 270.0 274.8 225.4 432.4 222.2 203.1 199.3 212.7 242.8 154.4 168.1 145.4 132.7 Net Debt 1,368.4 1,364.7 1,353.4 1,368.9 1,323.3 1,338.3 1,338.0 1,320.5 1,286.3 1,209.3 1,092.7 1,111.5 1,128.6 Net Debt to Adj. EBITDA 4.3x 3.7x 3.2x 3.0x 2.6x 2.5x 2.4x 2.3x 2.2x 2.0x 1.8x 1.7x 1.7x Adjusted EBITDA is a non-GAAP financial measure, see appendix for reconciliation to the most comparable GAAP metric.

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34 ©2026 RingCentral34 ©2026 RingCentral Debt Profile as of December 31, 2025 (1) The C ompany has $ 650.0 million a vailable for dr awdown u nder the Ter m Loan as of December 31, 2025. (2) The C ompany has $ 305.0 million a vailable for bor rowing under t he R e volving C r edit Fac ility as of December31, 2025. (3) The C ompany settle d t he remaining $161.3 million pr incipal of th e 2025 C onvert ible Notes in ca s h on the origin al mat urity da te i n M ar ch 2025. (4) As of D ec em be r 3 1 , 2025, th e c urr ent port ion of lon g-ter m debt , net , consis t s of the $608.7 million net c arry ing am ou nt of the 2026 Conver tible Note s and $15. 5 million in e xpect ed principa l pay m e nts due on th e Ter m Loan . The Term L oan requir es quar terlyprincipa l pay m e nts of 1.25% of the ref inanc ed $310. 0 m illion pr incipal amount dra w n , with balanc e due at m a turit y.

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