QUEBEC CITY, Canada, March 21, 2011 (GLOBE NEWSWIRE) -- EXFO Inc. (Nasdaq:EXFO) (TSX:EXF) announced today the release of the proxyFlex Test Suite, a new software that emulates the call session control functions (CSCFs), which are key components of the IMS core. Housed in the InterWatch R14 and QualityAssurer QA-604 platforms, proxyFlex can emulate the entire IMS core and the subscriber with the same application when combined with the sipFlex and hssFlex test suites. According to Infonetics, the number of worldwide IMS subscribers is expected to reach over half a billion by 2014. Fuelled by an increase in both the wireline and wireless subscribers, especially now that IMS has been selected as the service architecture for LTE, this massive growth will put significant pressure on IMS networks that will need to support high capacity and performance under load. Before being deployed, these high-performance IMS networks will have to be verified in the lab to ensure that they will meet capacity and performance expectations while ensuring quality of customer experience. Thanks to EXFO's proxyFlex Test Suite, network equipment manufacturers (NEMs) and network service providers (NSPs) can emulate the IMS P-CSCF, S-CSCF and I-CSCF, thus performing comprehensive device and end-to-end testing of various IMS network components. "Operators developing and deploying IMS and LTE networks must test against real-life scenarios, as it is the only way to verify end-to-end services, avoid costly deployment mistakes and, ultimately, ensure quality of service," said Vivian Hudson, Vice-President of EXFO's Service Assurance and Wireless Divisions. "Supporting up to 10 million subscribers and handling thousands of registrations and calls per second, EXFO's proxyFlex software is truly a unique solution for IMS network and service testing." The proxyFlex Test Suite will be showcased at CTIA Wireless 2011, March 22-24, 2011, in Orlando, USA, booth 4346.