Table of Contents 1 Report Overview 1.1 Study Scope 1.2 Key Market Segments 1.3 Players Covered: Ranking by Enterprise Unified Communication & Collaboration Revenue 1.4 Market Analysis by Type 1.4.1 Global Enterprise Unified Communication & Collaboration Market Size Growth Rate by Type: 2020 VS 2026 1.4.2 On-Premise 1.4.3 Cloud 1.5 Market by Application 1.5.1 Global Enterprise Unified Communication & Collaboration Market Share by Application: 2020 VS 2026 1.5.2 IT & Telecom 1.5.3 BFSI 1.5.4 Retail 1.5.5 Healthcare 1.5.6 Government 1.6 Study Objectives 1.7 Years Considered 2 Global Growth Trends by Regions 2.1 Enterprise Unified Communication & Collaboration Market Perspective (2015-2026) 2.2 Enterprise Unified Communication & Collaboration Growth Trends by Regions 2.2.1 Enterprise Unified Communication & Collaboration Market Size by Regions: 2015 VS 2020 VS 2026 2.2.2 Enterprise Unified Communication & Collaboration Historic Market Share by Regions (2015-2020) 2.2.3 Enterprise Unified Communication & Collaboration Forecasted Market Size by Regions (2021-2026) 2.3 Industry Trends and Growth Strategy 2.3.1 Market Top Trends 2.3.2 Market Drivers 2.3.3 Market Challenges 2.3.4 Porter’s Five Forces Analysis 2.3.5 Enterprise Unified Communication & Collaboration Market Growth Strategy 2.3.6 Primary Interviews with Key Enterprise Unified Communication & Collaboration Players (Opinion Leaders) 3 Competition Landscape by Key Players 3.1 Global Top Enterprise Unified Communication & Collaboration Players by Market Size 3.1.1 Global Top Enterprise Unified Communication & Collaboration Players by Revenue (2015-2020) 3.1.2 Global Enterprise Unified Communication & Collaboration Revenue Market Share by Players (2015-2020) 3.1.3 Global Enterprise Unified Communication & Collaboration Market Share by Company Type (Tier 1, Tier 2 and Tier 3) 3.2 Global Enterprise Unified Communication & Collaboration Market Concentration Ratio 3.2.1 Global Enterprise Unified Communication & Collaboration Market Concentration Ratio (CR5 and HHI) 3.2.2 Global Top 10 and Top 5 Companies by Enterprise Unified Communication & Collaboration Revenue in 2019 3.3 Enterprise Unified Communication & Collaboration Key Players Head office and Area Served 3.4 Key Players Enterprise Unified Communication & Collaboration Product Solution and Service 3.5 Date of Enter into Enterprise Unified Communication & Collaboration Market 3.6 Mergers & Acquisitions, Expansion Plans 4 Breakdown Data by Type (2015-2026) 4.1 Global Enterprise Unified Communication & Collaboration Historic Market Size by Type (2015-2020) 4.2 Global Enterprise Unified Communication & Collaboration Forecasted Market Size by Type (2021-2026) 5 Enterprise Unified Communication & Collaboration Breakdown Data by Application (2015-2026) 5.1 Global Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 5.2 Global Enterprise Unified Communication & Collaboration Forecasted Market Size by Application (2021-2026) 6 North America 6.1 North America Enterprise Unified Communication & Collaboration Market Size (2015-2020) 6.2 Enterprise Unified Communication & Collaboration Key Players in North America (2019-2020) 6.3 North America Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 6.4 North America Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 7 Europe 7.1 Europe Enterprise Unified Communication & Collaboration Market Size (2015-2020) 7.2 Enterprise Unified Communication & Collaboration Key Players in Europe (2019-2020) 7.3 Europe Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 7.4 Europe Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 8 China 8.1 China Enterprise Unified Communication & Collaboration Market Size (2015-2020) 8.2 Enterprise Unified Communication & Collaboration Key Players in China (2019-2020) 8.3 China Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 8.4 China Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 9 Japan 9.1 Japan Enterprise Unified Communication & Collaboration Market Size (2015-2020) 9.2 Enterprise Unified Communication & Collaboration Key Players in Japan (2019-2020) 9.3 Japan Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 9.4 Japan Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 10 Southeast Asia 10.1 Southeast Asia Enterprise Unified Communication & Collaboration Market Size (2015-2020) 10.2 Enterprise Unified Communication & Collaboration Key Players in Southeast Asia (2019-2020) 10.3 Southeast Asia Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 10.4 Southeast Asia Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 11 India 11.1 India Enterprise Unified Communication & Collaboration Market Size (2015-2020) 11.2 Enterprise Unified Communication & Collaboration Key Players in India (2019-2020) 11.3 India Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 11.4 India Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 12 Central & South America 12.1 Central & South America Enterprise Unified Communication & Collaboration Market Size (2015-2020) 12.2 Enterprise Unified Communication & Collaboration Key Players in Central & South America (2019-2020) 12.3 Central & South America Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) 12.4 Central & South America Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) 13 Key Players Profiles 13.1 CISCO 13.1.1 CISCO Company Details 13.1.2 CISCO Business Overview and Its Total Revenue 13.1.3 CISCO Enterprise Unified Communication & Collaboration Introduction 13.1.4 CISCO Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020)) 13.1.5 CISCO Recent Development 13.2 Microsoft 13.2.1 Microsoft Company Details 13.2.2 Microsoft Business Overview and Its Total Revenue 13.2.3 Microsoft Enterprise Unified Communication & Collaboration Introduction 13.2.4 Microsoft Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.2.5 Microsoft Recent Development 13.3 Avaya 13.3.1 Avaya Company Details 13.3.2 Avaya Business Overview and Its Total Revenue 13.3.3 Avaya Enterprise Unified Communication & Collaboration Introduction 13.3.4 Avaya Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.3.5 Avaya Recent Development 13.4 IBM 13.4.1 IBM Company Details 13.4.2 IBM Business Overview and Its Total Revenue 13.4.3 IBM Enterprise Unified Communication & Collaboration Introduction 13.4.4 IBM Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.4.5 IBM Recent Development 13.5 Mitel 13.5.1 Mitel Company Details 13.5.2 Mitel Business Overview and Its Total Revenue 13.5.3 Mitel Enterprise Unified Communication & Collaboration Introduction 13.5.4 Mitel Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.5.5 Mitel Recent Development 13.6 Nokia 13.6.1 Nokia Company Details 13.6.2 Nokia Business Overview and Its Total Revenue 13.6.3 Nokia Enterprise Unified Communication & Collaboration Introduction 13.6.4 Nokia Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.6.5 Nokia Recent Development 13.7 NEC 13.7.1 NEC Company Details 13.7.2 NEC Business Overview and Its Total Revenue 13.7.3 NEC Enterprise Unified Communication & Collaboration Introduction 13.7.4 NEC Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.7.5 NEC Recent Development 13.8 Unify 13.8.1 Unify Company Details 13.8.2 Unify Business Overview and Its Total Revenue 13.8.3 Unify Enterprise Unified Communication & Collaboration Introduction 13.8.4 Unify Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.8.5 Unify Recent Development 13.9 Huawei 13.9.1 Huawei Company Details 13.9.2 Huawei Business Overview and Its Total Revenue 13.9.3 Huawei Enterprise Unified Communication & Collaboration Introduction 13.9.4 Huawei Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.9.5 Huawei Recent Development 13.10 Genesys 13.10.1 Genesys Company Details 13.10.2 Genesys Business Overview and Its Total Revenue 13.10.3 Genesys Enterprise Unified Communication & Collaboration Introduction 13.10.4 Genesys Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 13.10.5 Genesys Recent Development 13.11 Polycom 10.11.1 Polycom Company Details 10.11.2 Polycom Business Overview and Its Total Revenue 10.11.3 Polycom Enterprise Unified Communication & Collaboration Introduction 10.11.4 Polycom Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 10.11.5 Polycom Recent Development 13.12 Verizon 10.12.1 Verizon Company Details 10.12.2 Verizon Business Overview and Its Total Revenue 10.12.3 Verizon Enterprise Unified Communication & Collaboration Introduction 10.12.4 Verizon Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 10.12.5 Verizon Recent Development 13.13 AT&T 10.13.1 AT&T Company Details 10.13.2 AT&T Business Overview and Its Total Revenue 10.13.3 AT&T Enterprise Unified Communication & Collaboration Introduction 10.13.4 AT&T Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 10.13.5 AT&T Recent Development 13.14 DXC Technology 10.14.1 DXC Technology Company Details 10.14.2 DXC Technology Business Overview and Its Total Revenue 10.14.3 DXC Technology Enterprise Unified Communication & Collaboration Introduction 10.14.4 DXC Technology Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 10.14.5 DXC Technology Recent Development 13.15 BroadSoft 10.15.1 BroadSoft Company Details 10.15.2 BroadSoft Business Overview and Its Total Revenue 10.15.3 BroadSoft Enterprise Unified Communication & Collaboration Introduction 10.15.4 BroadSoft Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) 10.15.5 BroadSoft Recent Development 14 Analyst's Viewpoints/Conclusions 15 Appendix 15.1 Research Methodology 15.1.1 Methodology/Research Approach 15.1.2 Data Source 15.2 Disclaimer 15.3 Author Details

List of Tables Table 1. Enterprise Unified Communication & Collaboration Key Market Segments Table 2. Key Players Covered: Ranking by Enterprise Unified Communication & Collaboration Revenue Table 3. Ranking of Global Top Enterprise Unified Communication & Collaboration Manufacturers by Revenue (US$ Million) in 2019 Table 4. Global Enterprise Unified Communication & Collaboration Market Size Growth Rate by Type (US$ Million): 2020 VS 2026 Table 5. Key Players of On-Premise Table 6. Key Players of Cloud Table 7. Global Enterprise Unified Communication & Collaboration Market Size Growth by Application (US$ Million): 2020 VS 2026 Table 8. Global Enterprise Unified Communication & Collaboration Market Size by Regions (US$ Million): 2020 VS 2026 Table 9. Global Enterprise Unified Communication & Collaboration Market Size by Regions (2015-2020) (US$ Million) Table 10. Global Enterprise Unified Communication & Collaboration Market Share by Regions (2015-2020) Table 11. Global Enterprise Unified Communication & Collaboration Forecasted Market Size by Regions (2021-2026) (US$ Million) Table 12. Global Enterprise Unified Communication & Collaboration Market Share by Regions (2021-2026) Table 13. Market Top Trends Table 14. Key Drivers: Impact Analysis Table 15. Key Challenges Table 16. Enterprise Unified Communication & Collaboration Market Growth Strategy Table 17. Main Points Interviewed from Key Enterprise Unified Communication & Collaboration Players Table 18. Global Enterprise Unified Communication & Collaboration Revenue by Players (2015-2020) (Million US$) Table 19. Global Enterprise Unified Communication & Collaboration Market Share by Players (2015-2020) Table 20. Global Top Enterprise Unified Communication & Collaboration Players by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in Enterprise Unified Communication & Collaboration as of 2019) Table 21. Global Enterprise Unified Communication & Collaboration by Players Market Concentration Ratio (CR5 and HHI) Table 22. Key Players Headquarters and Area Served Table 23. Key Players Enterprise Unified Communication & Collaboration Product Solution and Service Table 24. Date of Enter into Enterprise Unified Communication & Collaboration Market Table 25. Mergers & Acquisitions, Expansion Plans Table 26. Global Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 27. Global Enterprise Unified Communication & Collaboration Market Size Share by Type (2015-2020) Table 28. Global Enterprise Unified Communication & Collaboration Revenue Market Share by Type (2021-2026) Table 29. Global Enterprise Unified Communication & Collaboration Market Size Share by Application (2015-2020) Table 30. Global Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 31. Global Enterprise Unified Communication & Collaboration Market Size Share by Application (2021-2026) Table 32. North America Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 33. North America Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 34. North America Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 35. North America Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 36. North America Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 37. North America Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 38. Europe Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 39. Europe Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 40. Europe Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 41. Europe Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 42. Europe Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 43. Europe Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 44. China Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 45. China Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 46. China Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 47. China Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 48. China Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 49. China Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 50. Japan Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 51. Japan Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 52. Japan Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 53. Japan Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 54. Japan Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 55. Japan Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 56. Southeast Asia Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 57. Southeast Asia Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 58. Southeast Asia Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 59. Southeast Asia Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 60. Southeast Asia Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 61. Southeast Asia Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 62. India Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 63. India Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 64. India Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 65. India Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 66. India Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 67. India Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 68. Central & South America Key Players Enterprise Unified Communication & Collaboration Revenue (2019-2020) (Million US$) Table 69. Central & South America Key Players Enterprise Unified Communication & Collaboration Market Share (2019-2020) Table 70. Central & South America Enterprise Unified Communication & Collaboration Market Size by Type (2015-2020) (Million US$) Table 71. Central & South America Enterprise Unified Communication & Collaboration Market Share by Type (2015-2020) Table 72. Central & South America Enterprise Unified Communication & Collaboration Market Size by Application (2015-2020) (Million US$) Table 73. Central & South America Enterprise Unified Communication & Collaboration Market Share by Application (2015-2020) Table 74. CISCO Company Details Table 75. CISCO Business Overview Table 76. CISCO Product Table 77. CISCO Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 78. CISCO Recent Development Table 79. Microsoft Company Details Table 80. Microsoft Business Overview Table 81. Microsoft Product Table 82. Microsoft Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 83. Microsoft Recent Development Table 84. Avaya Company Details Table 85. Avaya Business Overview Table 86. Avaya Product Table 87. Avaya Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 88. Avaya Recent Development Table 89. IBM Company Details Table 90. IBM Business Overview Table 91. IBM Product Table 92. IBM Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 93. IBM Recent Development Table 94. Mitel Company Details Table 95. Mitel Business Overview Table 96. Mitel Product Table 97. Mitel Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 98. Mitel Recent Development Table 99. Nokia Company Details Table 100. Nokia Business Overview Table 101. Nokia Product Table 102. Nokia Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 103. Nokia Recent Development Table 104. NEC Company Details Table 105. NEC Business Overview Table 106. NEC Product Table 107. NEC Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 108. NEC Recent Development Table 109. Unify Business Overview Table 110. Unify Product Table 111. Unify Company Details Table 112. Unify Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 113. Unify Recent Development Table 114. Huawei Company Details Table 115. Huawei Business Overview Table 116. Huawei Product Table 117. Huawei Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 118. Huawei Recent Development Table 119. Genesys Company Details Table 120. Genesys Business Overview Table 121. Genesys Product Table 122. Genesys Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 123. Genesys Recent Development Table 124. Polycom Company Details Table 125. Polycom Business Overview Table 126. Polycom Product Table 127. Polycom Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 128. Polycom Recent Development Table 129. Verizon Company Details Table 130. Verizon Business Overview Table 131. Verizon Product Table 132. Verizon Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 133. Verizon Recent Development Table 134. AT&T Company Details Table 135. AT&T Business Overview Table 136. AT&T Product Table 137. AT&T Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 138. AT&T Recent Development Table 139. DXC Technology Company Details Table 140. DXC Technology Business Overview Table 141. DXC Technology Product Table 142. DXC Technology Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 143. DXC Technology Recent Development Table 144. BroadSoft Company Details Table 145. BroadSoft Business Overview Table 146. BroadSoft Product Table 147. BroadSoft Revenue in Enterprise Unified Communication & Collaboration Business (2015-2020) (Million US$) Table 148. BroadSoft Recent Development Table 149. Research Programs/Design for This Report Table 150. Key Data Information from Secondary Sources Table 151. Key Data Information from Primary Sources List of Figures Figure 1. Global Enterprise Unified Communication & Collaboration Market Share by Type: 2020 VS 2026 Figure 2. On-Premise Features Figure 3. Cloud Features Figure 4. Global Enterprise Unified Communication & Collaboration Market Share by Application: 2020 VS 2026 Figure 5. IT & Telecom Case Studies Figure 6. BFSI Case Studies Figure 7. Retail Case Studies Figure 8. Healthcare Case Studies Figure 9. Government Case Studies Figure 10. Enterprise Unified Communication & Collaboration Report Years Considered Figure 11. Global Enterprise Unified Communication & Collaboration Market Size YoY Growth 2015-2026 (US$ Million) Figure 12. Global Enterprise Unified Communication & Collaboration Market Share by Regions: 2020 VS 2026 Figure 13. Global Enterprise Unified Communication & Collaboration Market Share by Regions (2021-2026) Figure 14. Porter's Five Forces Analysis Figure 15. Global Enterprise Unified Communication & Collaboration Market Share by Players in 2019 Figure 16. Global Top Enterprise Unified Communication & Collaboration Players by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in Enterprise Unified Communication & Collaboration as of 2019 Figure 17. The Top 10 and 5 Players Market Share by Enterprise Unified Communication & Collaboration Revenue in 2019 Figure 18. North America Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 19. Europe Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 20. China Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 21. Japan Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 22. Southeast Asia Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 23. India Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 24. Central & South America Enterprise Unified Communication & Collaboration Market Size YoY Growth (2015-2020) (Million US$) Figure 25. CISCO Total Revenue (US$ Million): 2019 Compared with 2018 Figure 26. CISCO Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 27. Microsoft Total Revenue (US$ Million): 2019 Compared with 2018 Figure 28. Microsoft Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 29. Avaya Total Revenue (US$ Million): 2019 Compared with 2018 Figure 30. Avaya Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 31. IBM Total Revenue (US$ Million): 2019 Compared with 2018 Figure 32. IBM Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 33. Mitel Total Revenue (US$ Million): 2019 Compared with 2018 Figure 34. Mitel Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 35. Nokia Total Revenue (US$ Million): 2019 Compared with 2018 Figure 36. Nokia Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 37. NEC Total Revenue (US$ Million): 2019 Compared with 2018 Figure 38. NEC Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 39. Unify Total Revenue (US$ Million): 2019 Compared with 2018 Figure 40. Unify Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 41. Huawei Total Revenue (US$ Million): 2019 Compared with 2018 Figure 42. Huawei Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 43. Genesys Total Revenue (US$ Million): 2019 Compared with 2018 Figure 44. Genesys Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 45. Polycom Total Revenue (US$ Million): 2019 Compared with 2018 Figure 46. Polycom Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 47. Verizon Total Revenue (US$ Million): 2019 Compared with 2018 Figure 48. Verizon Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 49. AT&T Total Revenue (US$ Million): 2019 Compared with 2018 Figure 50. AT&T Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 51. DXC Technology Total Revenue (US$ Million): 2019 Compared with 2018 Figure 52. DXC Technology Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 53. BroadSoft Total Revenue (US$ Million): 2019 Compared with 2018 Figure 54. BroadSoft Revenue Growth Rate in Enterprise Unified Communication & Collaboration Business (2015-2020) Figure 55. Bottom-up and Top-down Approaches for This Report Figure 56. Data Triangulation Figure 57. Key Executives Interviewed

CISCO Microsoft Avaya IBM Mitel Nokia NEC Unify Huawei Genesys Polycom Verizon AT&T DXC Technology BroadSoft