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REDWOOD CITY, Calif. – August 19, 2014 –Dell’Oro Group, the trusted source for market information about the networking and telecommunications industries, announced today that Carrier IP Telephony market revenue grew over fifteen percent in the second quarter of 2014 versus the year-ago period.  Driven by network-based capital spending on infrastructure, to enable Voice over LTE (VoLTE) services, three significant market segments experienced robust growth. High-growth segments included IP Multimedia Subsystem (IMS) Core, Session Border Controllers (SBCs) and Voice Application Servers (VAS).

“While service providers such as T-Mobile USA have been offering Voice over WiFi for some time, the expected availability of Voice over WiFi (VoWiFi) capabilities for Apple’s new iPhone 6 and other devices capable of an upgrade to iOS 8 will drive new demand for network-based VoWiFi capabilities such as IMS, SBC and VAS systems,” said Chris DePuy, Vice President of Carrier IP Telephony research at Dell’Oro Group.  “So, while we expect the number of service providers that commercial launch VoLTE services to increase as much as three-fold by year-end, we may now see VoWiFi become an incremental driver to the adoption of these newer segments.”

The overall Carrier IP Telephony market, which includes devices used to serve both circuit switched subscribers, Voice over IP (VoIP) and Voice over LTE subscribers, topped $1.7 billion in the second quarter 2014.

About the Report

The Dell’Oro Group 2Q14 Carrier IP Telephony Quarterly Report offers complete, in-depth coverage of the market with tables covering manufacturers’ revenue, shipments, and average selling prices for both wireline and wireless voice core markets. The segments include softswitches, media gateways, session border controllers, voice application servers, IMS CSCF, and legacy mobile switching centers.  To purchase this report, please contact Julie Learmond-Criqui, call +1.650.622.9400 x244 or email

About Dell’Oro Group

As the trusted source for market information about the networking and telecommunications industries, Dell’Oro Group provides in-depth, objective research and analysis that enable component manufacturers, equipment vendors, and investment firms to make fact-based, strategic decisions.  For more information, contact Dell’Oro Group at +1.650.622.9400 or visit