Thank you, Vlad. Let me now expand on a few points. Agentic voice AI is our strategic priority that is delivering clear ROI. RCAI utilizing customers are driving tangible value. They have higher usage, increased spend and stronger retention. As Vlad highlighted, approximately 10% of our ARR now comes from customers using at least one AI product and that adoption more than doubled over the last year. AI is driving structural improvements, making every customer more valuable. Our AI solutions, AIR, AVA and ACE, deliver measurable outcomes at every stage of a conversation, before, during and after, respectively. Each plays a distinct role in driving automation, productivity and insights. Built upon our proven mission-critical communications platform, our agentic voice AI portfolio extends a durable moat grounded in scale, reliability and over 2 decades of customer trust. Our AI Receptionist, or AIR, is a virtual receptionist that ensures businesses never miss an important call or lead. It can handle multiple calls simultaneously, is multilingual and is able to answer questions, schedule appointments and meetings, and route calls. AIR is easy to set up with no professional services required in most cases. As a matter of fact, we have proof points of AIR being set up by human receptionists who are not technically savvy. AIR is our fastest-growing agentic voice AI offering and it is helping us capture greater wallet share from our customers. In Q4, AIR customer count reached 8,300, up 44% sequentially, with customers adding usage-based minute bundles to drive more efficient front-office operations, higher call intake and ultimately, more revenue. With a usage-based model, AIR revenue scales directly with our customers' business activity and is not subject to potential reduction in seat counts. If and when a call is connected to a human, that is where our AI Virtual Assistant, or AVA, steps in to assist in real time. AVA captures notes and surfaces recommendations, accelerating workflows for our RingEX and RingCX customers. After the call, our AI Conversation Expert, or ACE, closes the loop, analyzing every recorded interaction for insights that improve coaching, quality and performance across the organization. ACE has been well received with customer count now exceeding 4,800, up 144% year-over-year. Together, AIR, AVA and ACE create a layer of intelligence at every point of interaction, automating upfront, assisting in the moment and analyzing for ongoing improvement, helping customers drive better performance, stronger customer experiences and more informed decision-making. Let me now provide some real-world examples. A large multi-specialty health care provider in Tennessee deployed AIR in Q4 to address persistent challenges with long wait times, inefficient routing and schedule appointments with integrated SMS. After a 3-month trial, which enabled them to route 100% of incoming calls properly, they expanded AIR minutes from 30,000 to 0.5 million minutes per quarter. Destination Pet, a nationwide premium pet care provider, purchased RingEX and AIR in Q2 2025, and shortly after in Q4, they added ACE. They are leveraging AIR and ACE across 180-plus locations to capture every call and monitor call quality across every site, demonstrating that tangible ROA customers look to drive as they expand adoption of our AI portfolio. PM Pediatrics, largest specialized pediatric urgent care provider in United States, is leveraging AIR, AVA and ACE to enable faster routing, higher first contact resolution and richer patient engagement across their 80-plus locations. In particular, AIR is enabling them to handle 30% more patient calls. This integrated AI approach modernizes operations, reduces friction and enhances patient experience. The key point is that AIR, AVA and ACE are designed to automate, assist and analyze across the entire conversation journey. With RingCentral sitting at the very top of the B2C funnel and serving hundreds of thousands of businesses and millions of end users globally, we now have tangible early proof points of our ability to deliver significant customer value via agentic voice AI. The compounding flywheel of AIR, AVA and ACE is building upon the strength of our carrier-grade secure global business communications platform and sets us apart from point solutions contributing to ARPU extension and higher retention. In November, alongside our agentic voice AI suite, we introduced Customer Engagement Bundle, or CEB for EX. CEB is a purpose-built solution for businesses with non-dedicated agents who don't need the complexity of a full-scale contact center. Just months after launch, we crossed 1,000 customers, confirming strong demand. CEB is also quickly becoming another vector for RingCentral agentic voice AI growth. For customers with dedicated agents that require formal contact centers, RingCX provides an AI-powered customer experience suite, including WEM. Momentum with RingCX remains strong with adoption by more than 1,500 customers, nearly doubling year-over-year, while revenue and ARR also more than doubled. In Q4, over half of our $1 million-plus TCV deals included RingCX, and more than 50% of overall RingCX deals included AI. For example, Patient Connect, a specialized health care call center and scheduling provider, uses RingCX with AVA agent assist the surface patient insights, cutting handle times by 50%. They also use ACE quality management to replace time-consuming spot checks of call recordings, reducing escalations by 40%. Patient Connect reflects a broader pattern. Our agentic voice AI is delivering transformative results across customers of all sizes and industries, ourselves included. RingCentral customer support runs the full RingCX suite with WEM and agentic voice AI, resolving more interactions upfront, cutting queue volumes by over 50%, accelerating resolution times and elevating customer experiences. This is reflected in our latest Gartner Peer Insights ranking, where service and support scored a new high, placing us in the top tier of communications members. In summary, we're executing on our agentic voice AI vision, where AIR, AVA and ACE create an intelligence layer across every conversation. RCAI utilizing customers spend more, stay longer and represent a growing share of our business. This sets RingCentral up for durable growth, expanding profitability and meaningful long-term value creation. With that, I will hand it over to Vaibhav now.