This report estimates the global SIP trunking market that will inform strategic planning activities for service providers and SBC vendors. Segments include IP PBX, on-prem contact center, UCaaS/CCaaS BYOC, and UCaaS/CCaaS provider trunks.
The Analyst Team

Brent Kelly
Principal Analyst, Digital Workplace
Brent Kelly is a principal analyst for unified communication and collaboration within Omdia’s Digital Workplace team.
Since 1998, Brent has been the principal analyst at KelCor, Inc., where he provided strategy and counsel to CxOs, investment analysts, VCs, technology policy executives, sell-side firms, and technology buyers. He also provided full-time consultancy to Wainhouse Research and Constellation Research. With a PhD in chemical engineering, Brent has a strong data background in numerical methods and applied artificial intelligence with significant experience developing IoT and AI solutions.
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Global Contact Center Market Forecast – 2019–25
This forecast reveals the global contact center agent growth/shrinkage rates by country and region, broken down by various segments, including vertical markets, contact center size, premises-based and cloud-based systems, and in-house and outsources agents.
Data / 11 Apr 2022 / David Myron
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Telephony-based UC as a Service (UCaaS) Market Analysis Report – 2H21 Data
This data file provides total seats, monthly recurring revenue (MRR) per seat, total market revenue, and geographical split data for the telephony-based unified communications as a service (UCaaS) market as of December 31, 2021. See also: Telephony-based UC as a Service (UCaaS) Market Analysis Report – 2H21
Data / 28 Apr 2022 / Brent Kelly
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Enterprise Unified Communication and Voice Equipment Market Tracker – 1Q22 Analysis
This report provides color and analysis on the 1Q22 on-premises PBX, telephone, voice mail, and UC market. It covers PBX providers, including Cisco, Avaya, NEC, Mitel, Atos, Alcatel-Lucent Enterprise, Ericsson-LG, Yealink, and Poly.
Report / 15 Jun 2022 / Brent Kelly
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