SOURCE: Infonetics Research

Infonetics Research

July 08, 2010 14:41 ET

Infonetics Research: SIP trunking gaining on T1 lines as companies seek efficiency

BOSTON, MA--(Marketwire - July 8, 2010) -  Market research firm Infonetics Research ( today released excerpts from SIP Trunking Deployment Strategies: North American Enterprise Survey, part of its Continuous Research Service series of analyst notes and surveys on the enterprise VoIP and unified communications market.

"There is a perception in the market place that SIP trunking is all about cost savings, and to a certain degree that's true: SIP trunking allows organizations to build a more efficient trunking infrastructure, thus lowering their monthly telecom expenditures. But service providers should take note that when it comes to selecting a SIP trunking service provider, the most important criterion is reliability, not cost," notes Matthias Machowinski, Infonetics Research's directing analyst for enterprise voice and data.


  • Although many organizations have deployed VoIP on their premises, they still use legacy technologies to connect to the PSTN, with T1 lines the most commonly used trunking service today and in 2012
    • However, SIP trunk use is growing, and by 2012 will be the second most commonly deployed trunking service
  • Topping the list of reasons to deploy SIP trunking are the ability to centralize applications, enabling multimedia communication, and easier management/flexibility
  • Cisco leads the list of installed PBX manufacturers by a wide margin, followed by Avaya
  • AT&T and Verizon are used most often as providers of SIP trunking services by survey respondents

Infonetics Research's SIP Trunking Deployment Strategies survey, conducted in June and published in July 2010, looks at users' PBX infrastructure and deployment plans for SIP trunking services. Infonetics surveyed qualified IT purchase decision-makers at 100 US and Canadian companies with at least 100 employees about their SIP trunking deployment models, expenditures, service provider selection criteria, reasons for and against SIP trunking services, and which vendor and service provider equipment they have installed.


See ENTERPRISE VOIP AND UC on Infonetics' portal ( or follow the links 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.

Contact Information

  • Lead Analyst:
    Matthias Machowinski
    Directing Analyst, Enterprise Voice and Data
    Infonetics Research
    +1 408-583-3363
    Email Contact