Melanie Stone

Director, Marketing Communications Aeris.net

+1 (408) 348-8105

Melanie.Stone@aeris.net

Ricky Lyddon or

Valerie Christopherson

Bock Communications

+1 (714) 540-1030 x 18 or 17

gpappas@bockpr.com

SAN JOSE, Calif. - May 16, 2005 - Aeris.net (www.aeris.net), Aeris.net, a leading provider of machine-to-machine and telematics infrastructure services, today announced that the company is providing wireless connectivity, billing, and hosting services to International Truck and Engine for its new International® Aware™ Vehicle Intelligence product. International Aware Vehicle Intelligence is a productivity tool designed to help businesses reduce downtime, anticipate maintenance needs and provide an extra connection to their fleets’ security resources and other services. Customers using this tool will see its impact on their bottom line, because it will help reduce fuel and inventory costs, maximize available revenue opportunities, and improve the overall return on their investment in trucks and truck equipment. The product is now commercially available.

In this capacity, Aeris.net will provide International a state-of-the art 1XRTT communication gateway, a fully customizable billing platform, and a carrier-class hosting environment through its AerFrame™.

“We chose Aeris.net because of its reputation of being the leading network provider in the telematics market as well as its ability to meet tough requirements. Aeris.net delivers sophisticated products that we need to support our comprehensive solution,” said Jeff Bannister, Director of Truck Electronics of International Truck and Engine Corp.

An integrated, multi-service platform, Aeris.net’s AerFrame delivers voice and wireless data applications globally, across most telematics and telemetry communications devices and cellular networks. It also provides vehicle manufacturers and Telematics Service Providers with the only industry-focused billing service bureau.

“International Truck is clearly taking a leadership role in the truck telematics market and we are excited to be working together,” said Dick Gossen, CEO of Aeris.net. “The ability to come together and immediately show success in the marketplace validates the overall quality of International’s new telematics product.”

International’s new Aware SM Vehicle Intelligence telematics solution will provide real-time, comprehensive, and integrated operating information to the fleet manager, technician and owner. The service, now available, provides a new level of productivity and performance to entire fleets. “It even allows full diagnostic capability to the fleet manager while the trucks are still on the road,” said International’s Bannister.

About Aeris.net

Aeris.net is the leading provider of machine-to-machine wireless network services. Aeris.net has integrated all of the critical elements necessary — carriers, existing wireless and wireline infrastructures, applications, and proprietary two-way technologies — to create the MicroBurst network: the largest M2M wireless network in the Western Hemisphere. The MicroBurst network is deployed over the aggregated infrastructure of 30 North American wireless carriers, covers over 350 million people, and seamlessly operates anywhere there is cellular coverage within the United States, Canada, and Mexico. Today, Aeris.net provides service to over 800,000 devices ranging from security and alarm panels to trailer tracking products. For more information, please visit the company’s web site at http://www.aeris.net or call 1-888-GO-AERIS.

About International Truck and Engine Corporation

International Truck and Engine Corporation is the operating company of Navistar International Corporation (NYSE: NAV). The company produces International Ò brand commercial trucks, mid-range diesel engines and IC brand school buses and is a private label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. With the broadest distribution network in North America, the company also provides financing for customers and dealers. Additionally, through a joint venture with Ford Motor Company, the company builds medium commercial trucks and sells truck and diesel engine service parts. Additional information is available at www.internationaldeliver.com.

MicroBurst® and Aeris® are trademarks of Aeris Communications. All other company or product names are trademarks of their respective holders.