Hitachi AMN1220 GPON Fiber to the Premises System
Recognized as Nortel Compatible Product

ATLANTA, GA, April 19, 2007 – Hitachi Telecom (USA), Inc. today announced that the company’s AMN1220 GPON product has successfully completed laboratory interoperability testing with the Nortel Communication Server 2000 (CS 2000), a carrier grade softswitch that can scale up to 2,000,000 Busy Hour Call Attempts (BHCA). The Nortel CS 2000 provides transport of Voice over Internet Protocol (VoIP) traffic in Session Initiation Protocol (SIP) format.

The systems tested were the Hitachi AMN1220 GPON System Release 1.1, and the Nortel Communication Server 2000 Release SN09. Testing was conducted via the Nortel Media Gateway 15000 using H.248 protocol, Nortel Multimedia PC SIP Client, Media Gateway Control Protocol Integrated Access Device (MGCP IAD), and Centrex IP lines. Features and functions tested include Registration and Authentication, 3rd Party SIP Line Device (3PSL to 3PSL, 3PSL Recovery, 3PSL interworking, codec negotiation, SDP acceptance), calling features (CallerID, forward, hold, transfer, 3-way calling, conferencing, call waiting, and other advanced functions).

The Nortel Certificate of Compatibility for the Hitachi AMN1220 GPON system is available on Nortel’s Developer Program website at the following location: http://www.nortel.com/prd/dpp/product/prodpages/certs/cert2028.html.

Hitachi’s AMN1220 GPON system is currently deployed with multiple third party services platforms. Added to these deployments, the Nortel CS 2000 testing is part of an ongoing effort by Hitachi to provide the widest variety of services platform solutions for operators who implement Hitachi’s GPON solution.

“The Fiber to the Premises system is the glue that joins services and applications in an operator’s access network,” said David Foote, Hitachi Telecom’s chief technology officer. “Hitachi is committed to making it easy for operators to integrate our GPON solution with their existing infrastructure – from large scale to small - as well as with new technologies as they adapt their networks for the future.”

About Hitachi’s Fiber to the Premises Products

Hitachi’s FTTP platform is a family of products that provides ultra high bandwidth communication services to residential, business and institutional subscribers using a single optical fiber direct to the subscriber’s premises.  Hitachi’s GPON products for North America are compliant with ITU-T G.984 standards, providing further assurance that service providers will have maximum flexibility in implementing FTTP solutions as applications and capabilities develop in the future. 

About Hitachi Telecom (USA), Inc.

Hitachi Telecom (USA), Inc., a subsidiary of Hitachi America, Ltd., develops, manufactures and markets telecommunications equipment for the North American market. The company offers ITU-compliant ‘triple play’ systems for Fiber-to-the-Premises applications, and ultra high-speed optical networking equipment such as DWDM and SONET systems.  For more information on Hitachi Telecom (USA), Inc., visit http://www.hitachitelecom.com.

Hitachi America, Ltd., a subsidiary of Hitachi, Ltd., markets and manufactures a broad range of electronics and semiconductors, and provides industrial equipment and services throughout North America. For more information on Hitachi America, visit
http://www.hitachi.us. 

Hitachi, Ltd., (NYSE: HIT / TSE: 6501), headquartered in Tokyo, Japan, is a leading global electronics company with approximately 356,000 employees worldwide. Fiscal 2005 (ended March 31, 2006) consolidated sales totaled 9,464 billion yen ($80.9 billion). The company offers a wide range of systems, products and services in market sectors including information systems, electronic devices, power and industrial systems, consumer products, materials and financial services. For more information on Hitachi, please visit the company's website at www.hitachi.com.

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