Ixia Introduces New IMS and VoIP Testing Capabilities

Business Wire, March 21, 2007

New Capabilities Enable Complex IMS Control Plane Testing and Further Improve VoIP Protocol Support

CALABASAS, Calif. -- Ixia (Nasdaq:XXIA), a leading, global provider of IP performance test systems, today announced new VoIP and IMS testing capabilities with a new release of its IxVoice test solution. The new features enable equipment manufacturers and operators to qualify IMS infrastructure as well as allow more extensive VoIP interoperability testing.

The new IxVoice 4.10 release adds the capability to emulate the HSS (Home Subscriber Server) as well as support for SIP Sigcomp for testing Call Service Control Functions (CSCF). CSCFs are the core of the IMS control structure and ensuring their functionality is critical to the overall adoption of the IMS architecture. IxVoice can now be used to test the functionality of the CSCFs independently or together as a system by emulating the surrounding network elements, including the HSS.

"IMS poses incredible implementation and deployment challenges," said Errol Ginsberg, CEO of Ixia. "IxVoice has the inherent flexibility needed to enable service providers and network equipment manufacturers to test under such variable conditions, enabling the emulation of a vast number of different network elements and functions."

Ixia's IxVoice test solution is designed to validate the key IMS subsystems for interoperability, functionality and performance. It supports the dynamic architecture requirements inherent in large-scale IMS networks. To that end, IxVoice recently was used in the IMS Forum's[TM] IMS Plugfest[TM], the first in a series of events intended to bring together service providers and IMS vendors committed to furthering the development of IMS interoperability and certification. IxVoice emulated the user equipment (UE) and tested the multi-vendor core network for interoperability. It was also used to emulate the home subscriber system (HSS) to test the core control elements' functionality.

IxVoice 4.10 also adds significant improvements to the IxVoice H.323 protocol support for testing VoIP communications systems including call managers, softswitches and IP PBXs. H.323 is a key protocol used in VoIP telephony. The new H.323 functionality with allows users to test interoperability with a wider range of devices.

IxVoice provides unified VoIP and PSTN test solutions for network equipment manufacturers, service providers and enterprises. It addresses all major VoIP protocols: SIP, SCCP (Skinny), H.323, MGCP, H.248 (MEGACO) as well as TDM and analog telephony services.

For more information, see: http://www.ixiacom.com/solutions/display?skey=ixvoice

About Ixia

Ixia is a leading provider of performance test systems for IP-based infrastructure and services. Ixia's test systems are used by Network and Telephony Equipment Manufacturers, Semiconductor Manufacturers, Service Providers, Governments, and Enterprises to validate the functionality and reliability of complex IP networks, devices, and applications. Ixia's Triple Play test systems address the growing need to test voice, video, and data services and network capability under real-world conditions.

For more information, contact Ixia at 26601 W. Agoura Road, Calabasas, CA 91302; (818) 871-1800, Fax: (818) 871-1805; Email: info@ixiacom.com or visit our Web Site at http://www.ixiacom.com.

IxVoice, Ixia and the Ixia four petal logo and IxChariot are registered trademarks or trademarks of Ixia. Other trademarks are the property of their respective owners.

This material is for informational purposes only and subject to change without notice. It describes Ixia's present plans to develop and make available to its customers certain products, features and functionality. Ixia is only obligated to provide those deliverables specifically included in a written agreement between Ixia and the customer.