Trillium Unveils Two New 3G Wireless Software for Accelerating Wireless and IP Convergence.

Business Editors/High-Tech Writers

SUPERCOMM 2001

LOS ANGELES and ATLANTA--(BUSINESS WIRE)--June 5, 2001

Off-the-Shelf RANAP and Enhanced GTP Portable Software Lower

Costs and Development Risks While Accelerating Time-to-Market

Trillium Digital Systems Inc., an Intel company and leading provider of communications software solutions, today announced at SUPERCOMM 2001 the availability of two new 3G wireless software that decrease development time and risks for converging wireless and IP networks.

The new software protocol stacks consist of the Radio Access Network Application Protocol (RANAP) software and the latest version of Trillium's General Packet Radio Service (GPRS) Tunneling Protocol (GTP) software. Trillium's standards-based RANAP and GTP portable software are provided off-the-shelf to lower overall development and maintenance costs and result in shorter time-to-market.

Trillium's high-performance RANAP and GTP work with almost any operating system or processor. Because these new protocol stacks are built on the Trillium Advanced Portability Architecture (TAPA(R)), they can be easily integrated with other Trillium protocol software.

This interoperability enables wireless equipment manufacturers, wireless infrastructure companies and Internet infrastructure equipment providers to customize solutions that speed development of next-generation product offerings.

"Trillium's off-the-shelf wireless protocol software has proven to be a great choice for us, and has enabled us to meet the needs of our customers in a timely and cost-effective manner," said Mark Demange, vice president of engineering at AirNet Communications. "The portability, reliability and ease of configuration of Trillium software allows us to focus our engineering resources on providing differentiated and high value-added solutions to our customers."

RANAP portable software is used for the development of Radio Network Controllers (RNCs) for 3G wireless networks. It is the Radio Network Layer signaling protocol for the Iu interface, which is the interface between the radio access network and the core network.

RANAP also handles signaling between RNC and 3G Serving GPRS Support Node (SGSN) on the Iu-Packet Switch (PS) interface, and between RNC and 3G Mobile Switching Interface (MSC) on the Iu-Circuit Switch (CS) interface. It also provides the signaling channel to transparently pass messages between user equipment and the core network.

The GTP portable software provides signaling and data transfer procedures that define the protocol between the General Packet Radio Service Support Nodes (GSNs) within the GPRS and Universal Mobile Telecommunications System (UMTS) backbone networks.

GTP specifies a tunnel control and management protocol that allows the SGSN to offer GPRS services for a mobile phone or a modem. In addition to SGSN, the GTP software is used to develop Gateway GPRS Support Node (GGSN) and Charging Gateway Function (CGF), which interfaces with the network operator's billing system.

"Trillium's high-reliability software helps customers accelerate time-to-market by providing easily modifiable protocol stacks to address users' specific needs," said Larisa Chistyakov, CTO for Trillium Digital Systems. "Our RANAP and GTP offerings are just two ways Trillium is helping wireless equipment manufacturers seamlessly integrate standards-based communications software."

Trillium at SUPERCOMM 2001

Trillium is located in SUPERCOMM booth 1520 at the Georgia World Congress Center, Atlanta. Trillium's executives are available to answer media inquiries on its solution offerings throughout the conference's duration.

Additionally, Chistyakov will be chairing technical session T11A titled the "Fundamentals of Wireless Technology and Applications." This session, part of the International Engineering Consortium's (IEC's) Communication Forums at SUPERCOMM, is scheduled to take place today from 9:00 a.m. to 10:30 a.m.

About AirNet Communications

AirNet Communications Corp. is a leader in wireless base stations and other telecommunications equipment that allow service operators to cost-effectively and simultaneously offer high-speed wireless Internet and voice services to mobile subscribers.

AirNet's patented broadband, software-defined AdaptaCell(TM) base station solution provides a high-capacity base station with a software upgrade path to the wireless Internet. The company's AirSite(R) Backhaul Free(TM) base station carries wireless voice and data signals back to the wireline network, eliminating the need for a physical backhaul link, thus reducing operating costs.

AirNet has 71 patents issued or pending and has received the coveted World Award for Best Technical Innovation from the GSM Association, representing more than 400 operators around the world. More information about AirNet may be obtained by calling 321/984-1990, or by visiting the AirNet Web site at www.airnetcom.com.

About Trillium

Trillium Digital Systems, an Intel company, has headquarters in Los Angeles and is a leading provider of communications software solutions for the converged network infrastructure. Trillium's source code solutions are used in more than 500 projects by industry-leading suppliers of wireless, Internet, broadband and telephony products.

Trillium's high-performance, high-availability software and services reduce time, risk and cost of implementing SS7, IP, ATM, Wireless and other standards-based communications protocols. Trillium, an ISO 9001-certified software company, is the Networking Software Division of Intel's Access & Switching Group, which focuses on the Intel(R) Internet Exchange Architecture. Additional information is available at http://www.trillium.com.

Trillium, Trillium Digital Systems and TAPA are registered trademarks of Trillium Digital Systems Inc. The Future is Ahead of Schedule, The World's Source for Communications Software, Quick!Start, Software On Silicon, Trillium On Board, and Trillium Compliant are trademarks of Trillium Digital Systems Inc. Other names and brands may be claimed as the property of others.