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Avaya extends lead in PBX market, Asia up 29% year-over-year


Campbell, CALIFORNIA, August 17, 2011—Market research firm Infonetics Research released its second quarter 2011 (2Q11) Enterprise Unified Communication, VoIP, and TDM Equipment vendor market share report, led by VoIP and IMS analyst Diane Myers.


"The top enterprise telephony vendors remain in a tight battle to gain new customers and hold onto existing ones as enterprises migrate to IP and unified communications solutions. For the third quarter in a row, Avaya came out on top in the overall PBX market, with about a quarter of worldwide revenue in the second quarter of 2011, helped by steady shipments and healthy average selling prices. Cisco maintains its strong second position despite a slight lead in overall line shipments,” notes Diane Myers, directing analyst for VoIP and IMS at Infonetics Research.


  • Global PBX/KTS phone system revenue declined 2.3% sequentially in 2Q11 to $2.02 billion, but is up 3.9% from a year ago (2Q10), continuing its path of slow and steady recovery on year-over-year basis
  • Unified Communications (UC) revenue increased 2.3% sequentially in 2Q11 to $112.4 million on the strength of Microsoft UC solutions that continue to gain in deployments worldwide
  • Aastra, Mitel and ShoreTel are the only vendors posting positive PBX revenue gains in 2Q11 over 1Q11
  • The PBX market in Asia Pacific is proving resilient amidst the turmoil and sequential ups and downs of other regions, with four straight quarters of sequential PBX revenue growth
    • PBX revenue in Asia Pacific is up 29% year-over-year (2Q11 vs. 2Q10)
  • Meanwhile, the economic situation in North America and EMEA continues to assert pressure on the enterprise telephony segment, particularly at the lower end of the market, as businesses in both regions are slow to add employees and are generally holding off on upgrades
  • Pure IP PBXs, the fastest growing segment, saw line shipments grow 10.6% over 2Q10


Infonetics' quarterly Enterprise Unified Communication, VoIP, and TDM Equipment report provides worldwide and regional market size, market share, analysis, and forecasts through 2015 for the enterprise telephony market, including TDM PBX and KTS systems, hybrid and pure IP PBX systems, IP PBX by system size, VoIP gateways, unified communication applications (communicator, unified messaging), IP desk phones and IP soft phones. The report tracks Aastra, AudioCodes, Alcatel-Lucent, Avaya, Cisco, Dialogic, D-Link, HP, IBM, Microsoft, Mitel, NEC, NET/Quintum, Samsung, ShoreTel, Siemens, Toshiba, Vertical, and others. The full version of this report with forecasts and in-depth analysis will be available August 29.


Log in to Infonetics' portal and go to this report's “Conference Call for Clients” to join Diane Myers' Enterprise Unified Communication, VoIP, and TDM Equipment telebriefing Mon., Sept. 12, 12:00 p.m. Eastern:


For related and upcoming research, see ENTERPRISE VOICE, VIDEO, AND UNIFIED COMMUNICATION on Infonetics' portal (, or follow the links below for more information.



Infonetics Research ( is an international market research and consulting firm serving the communications industry since 1990. A leader in defining and tracking emerging and established technologies in all world regions, Infonetics helps clients plan, strategize, and compete more effectively.

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"For the third quarter in a row, Avaya came out on top in the overall PBX market, with about a quarter of worldwide revenue in the second quarter of 2011."

Diane Myers
Directing Analyst, VoIP and IMS


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