Thanks, Sam, and good afternoon, everyone. We remain financially disciplined and delivered solid revenue in the fiscal fourth quarter, exceeding our guidance range for non-GAAP operating margin and our expectations for operating cash flow for the fourth quarter and for the full year. We have now delivered positive cash flow and non-GAAP operating income for 9 consecutive quarters. Total revenue for the quarter was $184.5 million, and service revenue was $176.6 million, both increasing 2% year-over-year and within our guidance range. Our revenue performance reflected strong customer retention and renewals partially offset by a year-over-year decline in our CPaaS business in the Asia Pacific region as expected. However, revenue from our CPaaS business modestly increased sequentially from Q3 '23. Other revenue for the quarter was approximately $8 million, about $600,000 below the prior quarter driven by lower physical device shipments. We have seen a trend to increase use of soft phones versus desktop hardware over the last two quarters. It is still not apparent if this is a permanent or temporary change but our guidance assumes this trend will continue throughout fiscal 2024. Fuze accounted for $26.7 million of service revenue and $26.9 million of total revenue in Q4. Fuze's performance remains strong and the business continues to outperform our initial expectations. Please note, as stated on our previous earnings call, Q4 will be the last quarter we will provide separate Fuze revenue as the 1-year anniversary of this acquisition has passed and the businesses are now integrated. We have started upgrading Fuze customers to the 8x8 platform, making legacy Fuze revenue less relevant. As we mentioned in our previous earnings call, we continue to review our metrics to provide enhanced insight into business trends. In that vein, I would like to share the annual usage numbers in our service revenue, so you can understand the underlying growth rate of our contracted recurring service revenue. Our usage revenue, which is primarily CPaaS, but also includes a small amount of UCaaS and CCaaS revenue, was approximately 17% and 11% of total service revenue in fiscal years 2022 and 2023, respectively. This means that the underlying contracted recurring service revenue growth rate was approximately 26% in fiscal 2023 and approximately 9%, excluding Fuze. Strong retention across the customer base was reflected in our RPO and ARR metrics. Remaining performance obligation was approximately $775 million for the quarter up from $750 million in the third quarter on solid bookings performance. 8x8 customer retention was the highest it has been in 4 years. Total ARR was $703 million at quarter end, up 2% year-over-year, reflecting the anniversary of the Fuze acquisition plus CPaaS headwinds Sam mentioned earlier. Excluding usage, our total ARR grew approximately 5% year-over-year. ARR enterprise customers accounted for 58% of total ARR and enterprise ARR was up 3% year-over-year and approximately $5 million sequentially. Usage increased slightly on a sequential basis but with still a significant headwind to the year-over-year growth in the enterprise segment. Turning to gross margin, operating expenses and operating profit. Please remember that all items discussed are non-GAAP unless otherwise noted. Service revenue gross margin came in at 75.3%, more than 300 basis points higher than Q4 '22. We continuously focus on managing our costs and expect service margins to remain healthy. Other revenue gross margin came in at positive 8.6% for the quarter compared to negative 44.6% in Q4 '22 and negative 1.4% in Q3 '23. Other revenue gross margin has shown consistent improvement over the past several quarters due to a combination of increased efficiency in our professional services organization, better product margins on physical endpoint devices and a more favorable mix of endpoints shift. Overall, fourth quarter gross margin was 72.5%, an increase of 580 basis points year-over-year and up approximately 40 basis points sequentially. For the fiscal fourth quarter of 2023, gross profit dollars grew approximately 11% year-over-year, significantly higher than overall revenue growth as we focused on improving the profitability of our highest value products and services. Turning to operating expenses. R&D was 15.4% of revenue, slightly above our 15% target due to a seasonal increase in employee-related expenses at the beginning of the calendar year. We improved sales and marketing leverage as we realign costs in the second half of the fiscal year. Sales and marketing expenses were down $7.5 million sequentially and $11.8 million from Q4 '22 as we realize synergies from the integration of Fuze and 8x8 sales and marketing organizations and realigned our resources to focus on our target markets. G&A was approximately flat sequentially and down about $800,000 from the fourth quarter of 2022. As a percentage of revenue, it was 11.4%. We are committed to improving G&A efficiencies over time as we operationalize more automation in our back-office processes. Total non-GAAP spending as measured by COGS plus R&D, plus sales and marketing plus G&A, was down approximately 10% year-over-year and reflective of our recent strategic cost realignment efforts. The combination of improved gross margins and lower sales and marketing expenses resulted in non-GAAP operating profit of $24.8 million. up almost 500% year-over-year and up 35% sequentially. We achieved 13.5% operating margin in Q4 versus our 10% guidance. Full year non-GAAP operating profit was $62.3 million and up nearly 500% year-over-year. Cash from operations was nearly $14 million for the quarter, about $2 million lower than fiscal Q3 primarily due to higher cash interest payments as cash interest expense was over $4 million more in the fourth quarter compared to Q3 as we paid the semiannual coupon on the convertible notes in addition to the quarterly interest payments on our term loan. Customer collections remained robust in Q4. As noted earlier, cash flows from operating activities have been positive for 9 consecutive quarters and were approximately $49 million in fiscal 2023, an increase of 41% from fiscal 2022, even though we made approximately $20 million more in interest payments in 2023. Reducing our interest expense by using excess cash to reduce the principal amount of the term loan has a significant and immediate impact on our operating cash flow and it is our intention to use excess cash to reduce the principal outstanding as quickly as possible while maintaining cash and investments at or above $100 million. Turning to the balance sheet. Total cash, cash equivalents and restricted cash ended the fourth quarter at approximately $139 million, approximately $7 million higher than last quarter despite consuming $4.7 million in cash to prepay $5 million of aggregate principal amount of our 2024 convertible senior notes and paying higher cash interest expense, as noted earlier. There is approximately $63 million of aggregate principal value of 2024 convertible senior notes remaining, which is now shown as a current liability on the balance sheet. Given our current cash balance and expected future cash flows, we see no issues with repaying the remaining 2024 convertible notes with cash when they mature in February 2024. Going forward, we expect to generate positive cash flow and we intend to use the excess cash generated to prepay our 2027 term loan. As Sam stated earlier, this week, we prepaid $25 million of principal on our term loan with no prepayment penalty. Including this prepayment, we have reduced the principal amount of debt outstanding by a total of $58 million more than 10% of total outstanding debt since August 2022. Our continued progress delevering the balance sheet will reduce our interest expense and will apportion more of our enterprise value to our stockholders. Before turning to guidance, I want to emphasize our ongoing commitment to building a sustainable and profitable growth business. The strategic cost realignment activities executed in the second half of fiscal 2023 enabled us to maintain a substantial investment in product innovation and in our channel go-to-market model while delivering strong operating results. For forward modeling, we assume no revenue from the new contact center products we announced at our March event in New York. Even though these products have been released through our early adopter program and customer feedback has been positive so far, we are taking a conservative approach as we build and close the pipeline. As I noted earlier, we have exceeded our profit targets for fiscal 2023 on improved operating efficiency and greater focus on our target customers, and we expect solid profitability to continue throughout fiscal 2024. At a high level, we anticipate gross margin to remain fairly consistent with Q4 '23. We expect to continue to drive some incremental COGS efficiencies in our service revenue and we expect gross margin on other revenue in the negative mid-single digits. For operating expenses, we plan to continue making the appropriate level of investment in sales and marketing and expect sales and marketing to be in the range of 33% to 34% of revenue throughout fiscal 2024, down from 36% in fiscal 2023. We plan to focus our R&D efforts on continued product innovation and expect R&D as a percentage of revenue to remain about 15% as we continue on the path of investment in our customer-focused product strategy, which emphasizes contact center. We are focused on extracting more leverage from our G&A functions over time as we work to improve operating efficiencies in those areas. We are establishing guidance for the first quarter of fiscal 2024 ending June 30, 2023, as follows: we anticipate service revenue to be in the range of $178.5 million to $180.5 million, up $3 million sequentially from Q4 at the midpoint and representing approximately flat year-over-year growth at the midpoint as we still have a challenging comparison for CPaaS. We anticipate total revenue to be in the range of $186 million to $188 million, up $2.5 million sequentially at the midpoint and representing approximately flat year-over-year growth at the midpoint. We expect other revenue to be approximately flat compared to Q4 '23 as we are assuming that our endpoint shipments will remain at recent lower levels. We anticipate gross margin to be roughly flat with Q4 2023. We are targeting an operating margin between 12.5% and 13% as we have fully realized the operating efficiencies resulting from our second half 2023 strategic cost realignment actions and Q4 '23 included some nonrecurring expense benefits in the range of $1 million to $2 million. We expect cash flow from operations to be positive, but down sequentially as we pay our semiannual bonus in Q1 '24. We anticipate interest expense of approximately $9 million and cash interest payments of approximately $7 million. Note that these amounts can change as our term loan is subject to monthly interest rate adjustments. We estimate a fully diluted share count of approximately 120 million shares. We are establishing guidance for fiscal 2024 ending March 31, 2024, as follows: we anticipate service revenue to be in the range of $725 million to $732 million, representing between 2% and 3% growth year-over-year and consistent with the low single-digit growth rate articulated in our prior earnings call. We continue to be cautious regarding our CPaaS business, although that business did stabilize in Q4 '23. Please note that this full year guidance assumes a higher year-over-year growth rate for the second half of the year versus the first half of the year as we expect an improving revenue trajectory throughout fiscal 2024. We anticipate total revenue to be in the range of $755 million to $763 million, representing approximately 2% year-over-year growth at the midpoint. As noted earlier, we have reduced our product revenue expectations by approximately $4 million for the year relative to earlier expectations as our customers appear to be opting for more soft phones. This has an impact on total revenue growth expectations. Similar to service revenue growth rates, we expect total revenue growth rates on a year-over-year basis to be higher in the second half of fiscal 2024. We anticipate gross margin to be between 72% and 73%. We continue to focus on delivering a solid operating margin and anticipate achieving roughly 12% to 13% for the year. versus the 8.4% achieved in fiscal 2023. This operating margin guide is slightly higher than the 11.5% to 12.5% directional color we provided in last quarter's earnings call. Please note that we have changed our compensation structure to focus on higher cash and lower equity base pay for the majority of our people. We believe this change which reduces the impact of market fluctuations on employees' income will help us attract and retain talent in a competitive market. All employees still have the opportunity for equity ownership through our employee stock purchase plan but this will reduce stock-based compensation and shareholder dilution over time. This is why our full year guidance range for operating margin is slightly below Q1 guidance. We expect cash flow from operating activities to be directionally aligned with the non-GAAP operating profit trend subject to timing differences in collections and other payables. We anticipate debt interest expense and cash paid for debt interest of $35 million to $36 million, again, noting that our term loan is subject to monthly interest rate adjustments. We estimate fully diluted share count growth averaging approximately 2 million shares per quarter throughout fiscal 2024. In closing, I continue to believe that our ongoing focus on operating margin and cash flow is the correct strategy for us at this time. This strategy enables us to remain an innovation-led company as we fund investments in key product areas. I would like to personally thank the entire 8x8 team for working together to execute our profitability enhancements, which enabled us to increase our non-GAAP operating margin earlier than anticipated. I'm looking forward to the continued execution of our strategy to capture more of the contact center market to delight our customers and to deliver on our commitment to solid profitability and cash flow generation. Operator, we are ready for questions.