SIP Based IP PBX Market Share, Size, Growth, Trend 2017 SIP Based IP PBX Market Share, Size, 2017 | Page 4

• Microsoft
• Huawei
• West Unified Communications
• Mitel
• Vonage
• Avaya
• Cisco
• BroadSoft
• ShoreTel
View summary of this report @ http://www.radiantinsights.com/research/sip-based-ip-
pbx-market
Market Participants
• 8x8
• AT&T
• Brekeke Software
• BT / Avaya IP PBX Cloud
• Ciena / BluePlanet
• Cisco Systems
• Equinix / Avaya Cloud SIP Communications
• Ericsson
• Fonality
• NetSapiens
• RingCentral Next-Gen Competitor
• Vonage
• West Corporation
• ZyXEL
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