Table of Contents 1 Report Overview 1.1 Study Scope 1.2 Key Market Segments 1.3 Players Covered: Ranking by PBX Phone Software Revenue 1.4 Market Analysis by Type 1.4.1 Global PBX Phone Software Market Size Growth Rate by Type: 2020 VS 2026 1.4.2 On-Premise 1.4.3 Cloud-Based 1.5 Market by Application 1.5.1 Global PBX Phone Software Market Share by Application: 2020 VS 2026 1.5.2 SMEs 1.5.3 Large Enterprises 1.6 Study Objectives 1.7 Years Considered 2 Global Growth Trends by Regions 2.1 PBX Phone Software Market Perspective (2015-2026) 2.2 PBX Phone Software Growth Trends by Regions 2.2.1 PBX Phone Software Market Size by Regions: 2015 VS 2020 VS 2026 2.2.2 PBX Phone Software Historic Market Share by Regions (2015-2020) 2.2.3 PBX Phone Software 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 PBX Phone Software Market Growth Strategy 2.3.6 Primary Interviews with Key PBX Phone Software Players (Opinion Leaders) 3 Competition Landscape by Key Players 3.1 Global Top PBX Phone Software Players by Market Size 3.1.1 Global Top PBX Phone Software Players by Revenue (2015-2020) 3.1.2 Global PBX Phone Software Revenue Market Share by Players (2015-2020) 3.1.3 Global PBX Phone Software Market Share by Company Type (Tier 1, Tier 2 and Tier 3) 3.2 Global PBX Phone Software Market Concentration Ratio 3.2.1 Global PBX Phone Software Market Concentration Ratio (CR5 and HHI) 3.2.2 Global Top 10 and Top 5 Companies by PBX Phone Software Revenue in 2019 3.3 PBX Phone Software Key Players Head office and Area Served 3.4 Key Players PBX Phone Software Product Solution and Service 3.5 Date of Enter into PBX Phone Software Market 3.6 Mergers & Acquisitions, Expansion Plans 4 Breakdown Data by Type (2015-2026) 4.1 Global PBX Phone Software Historic Market Size by Type (2015-2020) 4.2 Global PBX Phone Software Forecasted Market Size by Type (2021-2026) 5 PBX Phone Software Breakdown Data by Application (2015-2026) 5.1 Global PBX Phone Software Market Size by Application (2015-2020) 5.2 Global PBX Phone Software Forecasted Market Size by Application (2021-2026) 6 North America 6.1 North America PBX Phone Software Market Size (2015-2020) 6.2 PBX Phone Software Key Players in North America (2019-2020) 6.3 North America PBX Phone Software Market Size by Type (2015-2020) 6.4 North America PBX Phone Software Market Size by Application (2015-2020) 7 Europe 7.1 Europe PBX Phone Software Market Size (2015-2020) 7.2 PBX Phone Software Key Players in Europe (2019-2020) 7.3 Europe PBX Phone Software Market Size by Type (2015-2020) 7.4 Europe PBX Phone Software Market Size by Application (2015-2020) 8 China 8.1 China PBX Phone Software Market Size (2015-2020) 8.2 PBX Phone Software Key Players in China (2019-2020) 8.3 China PBX Phone Software Market Size by Type (2015-2020) 8.4 China PBX Phone Software Market Size by Application (2015-2020) 9 Japan 9.1 Japan PBX Phone Software Market Size (2015-2020) 9.2 PBX Phone Software Key Players in Japan (2019-2020) 9.3 Japan PBX Phone Software Market Size by Type (2015-2020) 9.4 Japan PBX Phone Software Market Size by Application (2015-2020) 10 Southeast Asia 10.1 Southeast Asia PBX Phone Software Market Size (2015-2020) 10.2 PBX Phone Software Key Players in Southeast Asia (2019-2020) 10.3 Southeast Asia PBX Phone Software Market Size by Type (2015-2020) 10.4 Southeast Asia PBX Phone Software Market Size by Application (2015-2020) 11 India 11.1 India PBX Phone Software Market Size (2015-2020) 11.2 PBX Phone Software Key Players in India (2019-2020) 11.3 India PBX Phone Software Market Size by Type (2015-2020) 11.4 India PBX Phone Software Market Size by Application (2015-2020) 12 Central & South America 12.1 Central & South America PBX Phone Software Market Size (2015-2020) 12.2 PBX Phone Software Key Players in Central & South America (2019-2020) 12.3 Central & South America PBX Phone Software Market Size by Type (2015-2020) 12.4 Central & South America PBX Phone Software Market Size by Application (2015-2020) 13Key Players Profiles 13.1 Nextiva 13.1.1 Nextiva Company Details 13.1.2 Nextiva Business Overview and Its Total Revenue 13.1.3 Nextiva PBX Phone Software Introduction 13.1.4 Nextiva Revenue in PBX Phone Software Business (2015-2020)) 13.1.5 Nextiva Recent Development 13.2 8x8 13.2.1 8x8 Company Details 13.2.2 8x8 Business Overview and Its Total Revenue 13.2.3 8x8 PBX Phone Software Introduction 13.2.4 8x8 Revenue in PBX Phone Software Business (2015-2020) 13.2.5 8x8 Recent Development 13.3 Jive Communications 13.3.1 Jive Communications Company Details 13.3.2 Jive Communications Business Overview and Its Total Revenue 13.3.3 Jive Communications PBX Phone Software Introduction 13.3.4 Jive Communications Revenue in PBX Phone Software Business (2015-2020) 13.3.5 Jive Communications Recent Development 13.4 Vonage Business Solutions 13.4.1 Vonage Business Solutions Company Details 13.4.2 Vonage Business Solutions Business Overview and Its Total Revenue 13.4.3 Vonage Business Solutions PBX Phone Software Introduction 13.4.4 Vonage Business Solutions Revenue in PBX Phone Software Business (2015-2020) 13.4.5 Vonage Business Solutions Recent Development 13.5 FluentStream 13.5.1 FluentStream Company Details 13.5.2 FluentStream Business Overview and Its Total Revenue 13.5.3 FluentStream PBX Phone Software Introduction 13.5.4 FluentStream Revenue in PBX Phone Software Business (2015-2020) 13.5.5 FluentStream Recent Development 13.6 RingCentral 13.6.1 RingCentral Company Details 13.6.2 RingCentral Business Overview and Its Total Revenue 13.6.3 RingCentral PBX Phone Software Introduction 13.6.4 RingCentral Revenue in PBX Phone Software Business (2015-2020) 13.6.5 RingCentral Recent Development 13.7 Business Voice 13.7.1 Business Voice Company Details 13.7.2 Business Voice Business Overview and Its Total Revenue 13.7.3 Business Voice PBX Phone Software Introduction 13.7.4 Business Voice Revenue in PBX Phone Software Business (2015-2020) 13.7.5 Business Voice Recent Development 13.8 UniVoip 13.8.1 UniVoip Company Details 13.8.2 UniVoip Business Overview and Its Total Revenue 13.8.3 UniVoip PBX Phone Software Introduction 13.8.4 UniVoip Revenue in PBX Phone Software Business (2015-2020) 13.8.5 UniVoip Recent Development 13.9 Dialpad 13.9.1 Dialpad Company Details 13.9.2 Dialpad Business Overview and Its Total Revenue 13.9.3 Dialpad PBX Phone Software Introduction 13.9.4 Dialpad Revenue in PBX Phone Software Business (2015-2020) 13.9.5 Dialpad Recent Development 13.10 Ooma 13.10.1 Ooma Company Details 13.10.2 Ooma Business Overview and Its Total Revenue 13.10.3 Ooma PBX Phone Software Introduction 13.10.4 Ooma Revenue in PBX Phone Software Business (2015-2020) 13.10.5 Ooma Recent Development 13.11 net2phone 10.11.1 net2phone Company Details 10.11.2 net2phone Business Overview and Its Total Revenue 10.11.3 net2phone PBX Phone Software Introduction 10.11.4 net2phone Revenue in PBX Phone Software Business (2015-2020) 10.11.5 net2phone Recent Development 13.12 NICE 10.12.1 NICE Company Details 10.12.2 NICE Business Overview and Its Total Revenue 10.12.3 NICE PBX Phone Software Introduction 10.12.4 NICE Revenue in PBX Phone Software Business (2015-2020) 10.12.5 NICE Recent Development 13.13 Twilio 10.13.1 Twilio Company Details 10.13.2 Twilio Business Overview and Its Total Revenue 10.13.3 Twilio PBX Phone Software Introduction 10.13.4 Twilio Revenue in PBX Phone Software Business (2015-2020) 10.13.5 Twilio Recent Development 13.14 Intulse 10.14.1 Intulse Company Details 10.14.2 Intulse Business Overview and Its Total Revenue 10.14.3 Intulse PBX Phone Software Introduction 10.14.4 Intulse Revenue in PBX Phone Software Business (2015-2020) 10.14.5 Intulse Recent Development 13.15 Versature 10.15.1 Versature Company Details 10.15.2 Versature Business Overview and Its Total Revenue 10.15.3 Versature PBX Phone Software Introduction 10.15.4 Versature Revenue in PBX Phone Software Business (2015-2020) 10.15.5 Versature Recent Development 13.16 Skype 10.16.1 Skype Company Details 10.16.2 Skype Business Overview and Its Total Revenue 10.16.3 Skype PBX Phone Software Introduction 10.16.4 Skype Revenue in PBX Phone Software Business (2015-2020) 10.16.5 Skype Recent Development 13.17 Join.me 10.17.1 Join.me Company Details 10.17.2 Join.me Business Overview and Its Total Revenue 10.17.3 Join.me PBX Phone Software Introduction 10.17.4 Join.me Revenue in PBX Phone Software Business (2015-2020) 10.17.5 Join.me Recent Development 13.18 Five9 10.18.1 Five9 Company Details 10.18.2 Five9 Business Overview and Its Total Revenue 10.18.3 Five9 PBX Phone Software Introduction 10.18.4 Five9 Revenue in PBX Phone Software Business (2015-2020) 10.18.5 Five9 Recent Development 13.19 Mitel 10.19.1 Mitel Company Details 10.19.2 Mitel Business Overview and Its Total Revenue 10.19.3 Mitel PBX Phone Software Introduction 10.19.4 Mitel Revenue in PBX Phone Software Business (2015-2020) 10.19.5 Mitel Recent Development 14Analyst's Viewpoints/Conclusions 15Appendix 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. PBX Phone Software Key Market Segments Table 2. Key Players Covered: Ranking by PBX Phone Software Revenue Table 3. Ranking of Global Top PBX Phone Software Manufacturers by Revenue (US$ Million) in 2019 Table 4. Global PBX Phone Software Market Size Growth Rate by Type (US$ Million): 2020 VS 2026 Table 5. Key Players of On-Premise Table 6. Key Players of Cloud-Based Table 7. Global PBX Phone Software Market Size Growth by Application (US$ Million): 2020 VS 2026 Table 8. Global PBX Phone Software Market Size by Regions (US$ Million): 2020 VS 2026 Table 9. Global PBX Phone Software Market Size by Regions (2015-2020) (US$ Million) Table 10. Global PBX Phone Software Market Share by Regions (2015-2020) Table 11. Global PBX Phone Software Forecasted Market Size by Regions (2021-2026) (US$ Million) Table 12. Global PBX Phone Software Market Share by Regions (2021-2026) Table 13. Market Top Trends Table 14. Key Drivers: Impact Analysis Table 15. Key Challenges Table 16. PBX Phone Software Market Growth Strategy Table 17. Main Points Interviewed from Key PBX Phone Software Players Table 18. Global PBX Phone Software Revenue by Players (2015-2020) (Million US$) Table 19. Global PBX Phone Software Market Share by Players (2015-2020) Table 20. Global Top PBX Phone Software Players by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in PBX Phone Software as of 2019) Table 21. Global PBX Phone Software by Players Market Concentration Ratio (CR5 and HHI) Table 22. Key Players Headquarters and Area Served Table 23. Key Players PBX Phone Software Product Solution and Service Table 24. Date of Enter into PBX Phone Software Market Table 25. Mergers & Acquisitions, Expansion Plans Table 26. Global PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 27. Global PBX Phone Software Market Size Share by Type (2015-2020) Table 28. Global PBX Phone Software Revenue Market Share by Type (2021-2026) Table 29. Global PBX Phone Software Market Size Share by Application (2015-2020) Table 30. Global PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 31. Global PBX Phone Software Market Size Share by Application (2021-2026) Table 32. North America Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 33. North America Key Players PBX Phone Software Market Share (2019-2020) Table 34. North America PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 35. North America PBX Phone Software Market Share by Type (2015-2020) Table 36. North America PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 37. North America PBX Phone Software Market Share by Application (2015-2020) Table 38. Europe Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 39. Europe Key Players PBX Phone Software Market Share (2019-2020) Table 40. Europe PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 41. Europe PBX Phone Software Market Share by Type (2015-2020) Table 42. Europe PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 43. Europe PBX Phone Software Market Share by Application (2015-2020) Table 44. China Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 45. China Key Players PBX Phone Software Market Share (2019-2020) Table 46. China PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 47. China PBX Phone Software Market Share by Type (2015-2020) Table 48. China PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 49. China PBX Phone Software Market Share by Application (2015-2020) Table 50. Japan Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 51. Japan Key Players PBX Phone Software Market Share (2019-2020) Table 52. Japan PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 53. Japan PBX Phone Software Market Share by Type (2015-2020) Table 54. Japan PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 55. Japan PBX Phone Software Market Share by Application (2015-2020) Table 56. Southeast Asia Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 57. Southeast Asia Key Players PBX Phone Software Market Share (2019-2020) Table 58. Southeast Asia PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 59. Southeast Asia PBX Phone Software Market Share by Type (2015-2020) Table 60. Southeast Asia PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 61. Southeast Asia PBX Phone Software Market Share by Application (2015-2020) Table 62. India Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 63. India Key Players PBX Phone Software Market Share (2019-2020) Table 64. India PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 65. India PBX Phone Software Market Share by Type (2015-2020) Table 66. India PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 67. India PBX Phone Software Market Share by Application (2015-2020) Table 68. Central & South America Key Players PBX Phone Software Revenue (2019-2020) (Million US$) Table 69. Central & South America Key Players PBX Phone Software Market Share (2019-2020) Table 70. Central & South America PBX Phone Software Market Size by Type (2015-2020) (Million US$) Table 71. Central & South America PBX Phone Software Market Share by Type (2015-2020) Table 72. Central & South America PBX Phone Software Market Size by Application (2015-2020) (Million US$) Table 73. Central & South America PBX Phone Software Market Share by Application (2015-2020) Table 74. Nextiva Company Details Table 75. Nextiva Business Overview Table 76. Nextiva Product Table 77. Nextiva Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 78. Nextiva Recent Development Table 79. 8x8 Company Details Table 80. 8x8 Business Overview Table 81. 8x8 Product Table 82. 8x8 Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 83. 8x8 Recent Development Table 84. Jive Communications Company Details Table 85. Jive Communications Business Overview Table 86. Jive Communications Product Table 87. Jive Communications Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 88. Jive Communications Recent Development Table 89. Vonage Business Solutions Company Details Table 90. Vonage Business Solutions Business Overview Table 91. Vonage Business Solutions Product Table 92. Vonage Business Solutions Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 93. Vonage Business Solutions Recent Development Table 94. FluentStream Company Details Table 95. FluentStream Business Overview Table 96. FluentStream Product Table 97. FluentStream Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 98. FluentStream Recent Development Table 99. RingCentral Company Details Table 100. RingCentral Business Overview Table 101. RingCentral Product Table 102. RingCentral Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 103. RingCentral Recent Development Table 104. Business Voice Company Details Table 105. Business Voice Business Overview Table 106. Business Voice Product Table 107. Business Voice Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 108. Business Voice Recent Development Table 109. UniVoip Business Overview Table 110. UniVoip Product Table 111. UniVoip Company Details Table 112. UniVoip Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 113. UniVoip Recent Development Table 114. Dialpad Company Details Table 115. Dialpad Business Overview Table 116. Dialpad Product Table 117. Dialpad Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 118. Dialpad Recent Development Table 119. Ooma Company Details Table 120. Ooma Business Overview Table 121. Ooma Product Table 122. Ooma Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 123. Ooma Recent Development Table 124. net2phone Company Details Table 125. net2phone Business Overview Table 126. net2phone Product Table 127. net2phone Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 128. net2phone Recent Development Table 129. NICE Company Details Table 130. NICE Business Overview Table 131. NICE Product Table 132. NICE Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 133. NICE Recent Development Table 134. Twilio Company Details Table 135. Twilio Business Overview Table 136. Twilio Product Table 137. Twilio Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 138. Twilio Recent Development Table 139. Intulse Company Details Table 140. Intulse Business Overview Table 141. Intulse Product Table 142. Intulse Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 143. Intulse Recent Development Table 144. Versature Company Details Table 145. Versature Business Overview Table 146. Versature Product Table 147. Versature Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 148. Versature Recent Development Table 149. Skype Company Details Table 150. Skype Business Overview Table 151. Skype Product Table 152. Skype Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 153. Skype Recent Development Table 154. Join.me Company Details Table 155. Join.me Business Overview Table 156. Join.me Product Table 157. Join.me Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 158. Join.me Recent Development Table 159. Five9 Company Details Table 160. Five9 Business Overview Table 161. Five9 Product Table 162. Five9 Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 163. Five9 Recent Development Table 164. Mitel Company Details Table 165. Mitel Business Overview Table 166. Mitel Product Table 167. Mitel Revenue in PBX Phone Software Business (2015-2020) (Million US$) Table 168. Mitel Recent Development Table 169. Research Programs/Design for This Report Table 170. Key Data Information from Secondary Sources Table 171. Key Data Information from Primary Sources List of Figures Figure 1. Global PBX Phone Software Market Share by Type: 2020 VS 2026 Figure 2. On-Premise Features Figure 3. Cloud-Based Features Figure 4. Global PBX Phone Software Market Share by Application: 2020 VS 2026 Figure 5. SMEs Case Studies Figure 6. Large Enterprises Case Studies Figure 7. PBX Phone Software Report Years Considered Figure 8. Global PBX Phone Software Market Size YoY Growth 2015-2026 (US$ Million) Figure 9. Global PBX Phone Software Market Share by Regions: 2020 VS 2026 Figure 10. Global PBX Phone Software Market Share by Regions (2021-2026) Figure 11. Porter's Five Forces Analysis Figure 12. Global PBX Phone Software Market Share by Players in 2019 Figure 13. Global Top PBX Phone Software Players by Company Type (Tier 1, Tier 2 and Tier 3) (based on the Revenue in PBX Phone Software as of 2019 Figure 14. The Top 10 and 5 Players Market Share by PBX Phone Software Revenue in 2019 Figure 15. North America PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 16. Europe PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 17. China PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 18. Japan PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 19. Southeast Asia PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 20. India PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 21. Central & South America PBX Phone Software Market Size YoY Growth (2015-2020) (Million US$) Figure 22. Nextiva Total Revenue (US$ Million): 2019 Compared with 2018 Figure 23. Nextiva Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 24. 8x8 Total Revenue (US$ Million): 2019 Compared with 2018 Figure 25. 8x8 Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 26. Jive Communications Total Revenue (US$ Million): 2019 Compared with 2018 Figure 27. Jive Communications Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 28. Vonage Business Solutions Total Revenue (US$ Million): 2019 Compared with 2018 Figure 29. Vonage Business Solutions Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 30. FluentStream Total Revenue (US$ Million): 2019 Compared with 2018 Figure 31. FluentStream Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 32. RingCentral Total Revenue (US$ Million): 2019 Compared with 2018 Figure 33. RingCentral Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 34. Business Voice Total Revenue (US$ Million): 2019 Compared with 2018 Figure 35. Business Voice Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 36. UniVoip Total Revenue (US$ Million): 2019 Compared with 2018 Figure 37. UniVoip Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 38. Dialpad Total Revenue (US$ Million): 2019 Compared with 2018 Figure 39. Dialpad Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 40. Ooma Total Revenue (US$ Million): 2019 Compared with 2018 Figure 41. Ooma Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 42. net2phone Total Revenue (US$ Million): 2019 Compared with 2018 Figure 43. net2phone Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 44. NICE Total Revenue (US$ Million): 2019 Compared with 2018 Figure 45. NICE Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 46. Twilio Total Revenue (US$ Million): 2019 Compared with 2018 Figure 47. Twilio Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 48. Intulse Total Revenue (US$ Million): 2019 Compared with 2018 Figure 49. Intulse Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 50. Versature Total Revenue (US$ Million): 2019 Compared with 2018 Figure 51. Versature Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 52. Skype Total Revenue (US$ Million): 2019 Compared with 2018 Figure 53. Skype Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 54. Join.me Total Revenue (US$ Million): 2019 Compared with 2018 Figure 55. Join.me Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 56. Five9 Total Revenue (US$ Million): 2019 Compared with 2018 Figure 57. Five9 Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 58. Mitel Total Revenue (US$ Million): 2019 Compared with 2018 Figure 59. Mitel Revenue Growth Rate in PBX Phone Software Business (2015-2020) Figure 60. Bottom-up and Top-down Approaches for This Report Figure 61. Data Triangulation Figure 62. Key Executives Interviewed

Nextiva 8x8 Jive Communications Vonage Business Solutions FluentStream RingCentral Business Voice UniVoip Dialpad Ooma net2phone NICE Twilio Intulse Versature Skype Join.me Five9 Mitel