Empirix's Hammer VoIP Test Platforms Help Ditech Communications Accelerate Introduction and Delivery of New Packet Voice Processor Platform.

BEDFORD, Mass. -- Hammer test platforms from Empirix Inc., the industry's leading supplier of VoIP testing systems, have played a key role in accelerating the development and delivery of Ditech Communication's new Packet Voice Processor(TM). The Packet Voice Processor is an advanced voice processing platform designed to enable carriers to deploy universal transcoding and toll-quality VoIP services.

Ditech engineers utilized the Hammer FX(TM) functional test platform, the Hammer Call Analyzer(TM), the Hammer PacketSphere Network Emulator(TM) and customized test routines developed jointly by the two companies, to speed functional testing, quality assurance and benchmarking activities required to bring the Packet Voice Processor successfully to market.

Ditech's Packet Voice Processor offers the industry's most scalable solution for the transcoding of a broad array of compressed voice codecs, a critical challenge for VoIP equipment deployed at the edge or border of the IP backbone. Integrated with Ditech's VQA(TM) software, the Packet Voice Processor overcomes voice quality impairments, such as acoustic echo and voice level imbalances, introduced in end-devices.

"Hammer test solutions, supported by professional services from Empirix, have served as one of our primary tools for verifying and validating the Packet Voice Processor's unique capabilities," said Lee House, VP of engineering at Ditech. "Use of Hammer platforms enabled us to perform rigorous functional and quality assurance testing at each stage of development. In particular, the ability to use multiple Hammer test platforms, both individually and in an integrated test environment, helped us ensure that this exciting new system provides performance and quality that exceeds carrier expectations."

"Ditech Communications is an industry leader in solutions that enhance and assure the quality of VOIP network services," said Steven Gladstone, VP and general manager of the Empirix Communications Infrastructure Group. "The innovative technology at the core of the Packet Voice Processor created new testing challenges for both our companies, in areas ranging from protocol handling to signaling and voice quality measurement. Ditech's VON show launch demonstrates the success of our work together over the past year."

Ditech Communications Corporation is a global telecommunications equipment supplier for voice networks. Ditech Communications' voice products are high-capacity voice enhancement and echo canceller products that utilize advanced software and digital signal processor (DSP) technology. This combination of software and hardware allows Ditech Communications to deliver Voice Quality Assurance(TM) (VQA(TM)), a robust and cost-effective solution for voice enhancement including noise reduction and echo cancellation. Ditech Communications' packet voice products combine VQA technology with packet voice processing capabilities to provide essential services for VoIP carriers. Ditech Communications (DITC) is listed on the Nasdaq National Market and is headquartered in Mountain View, California, USA (web site: http://www.ditechcom.com ).

Hammer products are the industry's most widely-used VoIP IP/TDM test solutions, as verified by three consecutive Frost & Sullivan market surveys. Since the introduction of its first VoIP test system in 1995, the Hammer product family has grown to include a full range of testing platforms, products and services that span the complete development and deployment lifecycle for next-generation services. Leading network equipment manufacturers, service providers, independent labs and enterprise network operators rely on Hammer's proven VoIP testing technology and patented innovations to cost-efficiently verify the functionality, performance and quality of service of next-generation equipment and networks. For detailed Hammer product information, availability and pricing information, please call 1-800-426-6374 (Outside the U.S., [phone]) or visit www.empirix.com.

About Empirix

Empirix delivers a comprehensive range of testing and monitoring solutions that assure the performance of next-generation networks, contact centers, and Web-based applications. Empirix provides products, services, and support to thousands of customers worldwide, including Global 2000 enterprises, network equipment manufacturers, and service providers. Headquartered in Bedford, Massachusetts, Empirix is a privately held company, with offices throughout the United States, Europe and Asia. For more information, visit www.empirix.com.

Empirix, Hammer FX Hammer Call Analyzer and Hammer PacketSphere Network Emulator are trademarks or registered trademarks of Empirix Inc. in the United States and other countries. All other names are used for identification purposes only and may be trademarks of their respective owners.