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IMS survey on services, equipment and vendors shows growing momentum for mobile services


Boston, MASSACHUSETTS, June 29, 2011—Market research firm Infonetics Research today released excerpts from its IMS Services Strategies, Product Features, and Vendor Leadership: Global Service Provider Survey, for which carriers with IP Multimedia (voice, video, data) Subsystem core equipment in their networks were interviewed to assess their needs and to analyze trends in the IMS market.


“Our 2011 survey results show that fixed-line VoIP continues to be the primary service deployed over IMS; however, there also is a notable continuing shift toward IMS in the mobile world, evidenced by the rising number of mobile services planned over IMS by 2013: 78% of our respondents will have a mobile-specific service such as mobile messaging, VoLTE (voice over LTE), RCS (Rich Communication Service), and/or VoIP over 3G by 2013, up from 35% today,” notes Diane Myers, directing analyst for VoIP and IMS at Infonetics Research.


  • 2 key factors driving IMS deployments are the ability to offer converged services and LTE (Long Term Evolution) network deployment
  • While there appear to be no big barriers left to IMS deployment, indicated by the low numbers of respondents rating any factors “definitely a barrier” in either the 2011 or 2010 editions of Infonetics' survey, integration with existing back-end systems tops the list
  • At least half of the service providers participating in Infonetics' IMS survey plan to launch RCS, video telephony, and video sharing services over the next 2 years
  • Nokia Siemens Networks is the leading CSCF and HSS vendor in terms of products installed and under evaluation
  • When asked who they consider to be among the top 3 IMS infrastructure vendors, service providers named Ericsson and Alcatel-Lucent the most
  • Huawei poses a credible threat to Ericsson, Alcatel-Lucent, and Nokia Siemens Networks, as carrier respondents consider Huawei a leader in categories such as pricing and value, in addition to gaining service provider customers


Infonetics' June 2011 35-page IMS survey is based on interviews with knowledgeable purchase-decision makers at 23 service providers with IMS core equipment in their networks. Together, the carriers represent a significant 30% of worldwide telecom revenue and 29% of telecom capex and are a mix of incumbents (57%), mobile operators (22%), competitive operators (13%), and cable operators (9%) from EMEA (Europe, Middle East, Africa), North America, and Asia Pacific.

The report includes analysis and carrier responses to questions about drivers and barriers for migrating to IMS, plans and important features for CSCF (Call Session Control Function) and HSS (Home Subscriber Servers), and plans for IMS-based retail services (business-hosted IP voice, SIP trunking, Class 5 replacement voice, VoIP over 3G, IPTV, etc.). The report includes a vendor scorecard with service provider ratings of 8 IMS infrastructure manufacturers (Acme Packet, Alcatel-Lucent, BroadSoft, Ericsson, GENBAND, Huawei, Nokia Siemens Networks, ZTE) on 8 criteria (technology, product roadmap, system integration capability, price-to-performance ratio, pricing, financial stability, service and support, and solution maturity), as well as responses to open-ended questions about vendor leadership.




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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"Two key factors driving IMS deployments are the ability to offer converged services and LTE network deployment."

Diane Myers
Directing Analyst, VoIP and IMS


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