Thank you, Bruce. Good afternoon, everyone. We were very pleased with our financial performance in the fourth quarter and full year of 2023, as we met the midpoint of our adjusted EBITDA profitability guidance, due to very strong product gross margins and continued expense management. As always, please refer to our Investor Relations page on the Ribbon website for supplemental financial performance slides. Let's begin with financial results at the consolidated corporate level. In the fourth quarter of 2023, Ribbon generated revenues of $226 million, which is a decrease of 3% from the prior year. For the full year of 2023, revenues were $826 million, an increase of 1% versus the prior year. Fourth quarter non-GAAP gross margin was 56.8%, which is 440 basis points higher than prior year, due to very positive product mix, mostly in the IP Optical Networks business unit. For the full year, both business units increased gross margins, but as a result of a higher mix of IP Optical products, the gross margin remained at 53.1%, which is the same as the previous year. For the fourth quarter, non-GAAP operating expenses were $90 million, an improvement of $7 million, or 8% year-over-year, driven by reductions in R&D and sales expenses. For the year, operating expenses were $363 million, a net reduction of $24 million, driven by our restructuring programs. Quarterly, non-GAAP net income was $22 million, which is a $6 million increase from the previous year. This generated non-GAAP diluted earnings per share of $0.12, which is an increase of $0.03, or 39% versus prior year. Full year 2023 net income was $36 million, which was more than double the prior year result. Diluted earnings per share was $0.21, up $0.10, or 93% higher than 2022. Our non-GAAP tax rate year-to-date was 34%. Our interest expense for the quarter was $7 million, which is a $1 million increase from the previous year, driven entirely by the interest rate increases. For the year, interest expense totaled $27 million, which is $8 million higher than previous year. Adjusted EBITDA was $43 million in the quarter, which is a $14 million improvement year-over-year. For full year 2023, adjusted EBITDA was $91 million, which is a $27 million increase from the previous year, mostly driven by the enhanced profitability for IP Optical Networks. Our basic share count was 172 million shares, and our fully diluted share count was 173 million shares for the quarter. Now, let's look at the results of our two business segments. In our Cloud & Edge business, fourth quarter revenue was $122 million, a decrease of 11% year-over-year, driven by capital expenditure cutbacks from our U.S. Tier 1 Service Providers. For the full year, revenue was $478 million, which reflects a $30 million, or 6% decrease from 2023. Our services business remained consistent at $293 million, or 61% of revenues, delivering value to our customers of strong profit generation. The Cloud & Edge business had a strong fourth quarter non-GAAP gross margin of 67.8%, up 400 basis points from the prior year, driven by a large number of software sales, which were 69% of total product sales. For the full year of 2023, gross margin was 65.9%, up 80 basis points from prior year, as we experienced lower cost of goods sold. For 2024, we would expect continued margins in the mid to high 60% range. We continued to drive consistent profit contributions from the Cloud & Edge business segment. For the fourth quarter, adjusted EBITDA percentage was 28%, or $34 million. This is a decrease of $2 million, or only 5% from the previous year, although revenue decreased 11%. For full year 2023, adjusted EBITDA remained at 25%, or $121 million. Let's turn to our IP Optical Networks business results. We recorded fourth quarter revenue of $104 million, which was an increase of $7 million, led by continued growth in EMEA, India, North America, and Japan. For the year, revenues were $349 million for a strong 12% double-digit growth, driven by the same strategic geographies and new product introductions. Non-GAAP gross margin for IP Optical was 44%, up 770 basis points from the prior year. This was mostly caused by a better regional mix from EMEA sales, lower product costs, and increased fixed cost absorption from higher volumes. As we said in the last quarter, with higher revenues, and especially with a greater percentage of sales in EMEA than America, we would improve gross margins beyond our targeted mid to upper 30% range for IP Optical Networks. For the full year of 2023, gross margin was 35.7%, up 210 basis points. For 2024, we believe that we can achieve our targeted gross margin range of mid to upper 30%. Adjusted EBITDA for the quarter was a positive $8 million. This is an improvement of $16 million year-on-year. This stellar performance validates that the IP Optical Networks business can achieve positive adjusted EBITDA with quarterly revenues over $100 million and better regional sales mix. For full year 2023, we improve IP Optical Networks adjusted EBITDA loss from negative $64 million to negative $31 million. Please note that we improve adjusted EBITDA by $39 million from the first half to the second half of the 2023 year in this business segment. We continue to be focused on achieving profitability for IP Optical Networks. Let's now discuss total company cash flows and capital structure. Cash from operations was excellent, with a positive $20 million in the quarter and $17 million for the full year 2023. We used cash in the quarter of $3 million for capital expenditures and our quarterly $5 million term loan repayment. We ended the quarter with $27 million of cash equivalents and the $75 million revolver loan at zero balance outstanding. Our senior term loan balance was at $235 million, a decrease of $95 million from year-end 2022. Per the bank covenant calculations, which include $55 million of our preferred equity and total debt, among other adjustments, we comfortably met both of the amended term loan covenant metrics in the fourth quarter. The bank leverage ratio was 3.06 times and the fixed charge coverage ratio was 1.55 times. These covenant metrics are great improvements from December of 2022. The term loan A matures over one year from now, on March 3, 2025, and the preferred shares mature even later, on September 30, 2025. Given our 2023 financial performance and improved financial market conditions, our objective is to commence refinancing of our capital structure in the very near term. We are confident in the continued support of our financial partners to obtain a flexible and long-term capital structure to sustain a profitable growth. Now, I'll turn the call back to Bruce to provide more comments on our outlook for 2024.