ARINC and Telenor Add Altobridge Technology to Their In-Flight GSM Mobile Cell Phone Solution

February 7, 2005

Annapolis, Maryland, USA—ARINC Incorporated and Telenor today finalized a major element of their GSM Mobile Connectivity solution for the use of cell phones on commercial airlines. The companies announced a technology contract with Altobridge Ltd. of Kerry Technology Park, Ireland, a leading developer of advanced mobile systems for the aviation industry.

“The proven Altobridge platform will be the link between our Inmarsat satellite access and onboard GSM mobile users,” stated Berit Svendsen, Telenor Chief Technical Officer. “As a recognized market leader, Altobridge’s commitment not only brings proven technology to the ARINC/Telenor mobile solution, but enhances its market appeal.”

“Addition of the proven Altobridge platform means our rollout of the ARINC/Telenor Mobile Connectivity solution is on schedule for launch as planned,” stated Graham Lake, ARINC Vice President, Europe, Middle East, and Africa. “The completion of this agreement further illustrates that ARINC and Telenor have a truly tangible cell phone solution, and should clearly be the preferred partner for any airlines considering mobile inflight connectivity for passengers.”

“Altobridge is extremely pleased to support ARINC and Telenor’s Mobile Connectivity solution, as they are leading the race to bring this service to airline passengers,” said Mike Fitzgerald, CEO of Altobridge. “The Altobridge platform facilitates use of standard mobile phones on any Inmarsat-equipped aircraft, and puts passengers back into the open global wireless communications network we have all come to depend on.”

Altobridge, based in Kerry Technology Park, Ireland, is a leading provider of mobile telecommunications solutions. Its core (patent pending) AM Gateway PlatformTM enables standard cellular service anywhere in the world, including: cost-effective aeronautical communications; maritime communications and security solutions (utilizing standard wireless devices onboard); and terrestrial communications for remote communities and territories where Return on Investment was not previously envisaged. For more information, visit the Altobridge web site at www.altobridge.com.

With headquarters in Oslo, Norway, Telenor is an international provider of high quality telecommunications, data, and media services, with expanding operations in international mobile and satellite communications. Telenor is one of Norway's largest companies with 2003 revenues of approximately U.S. $7.6 billion and a workforce of 20,600 in Norway and abroad. Telenor is listed on the Oslo Stock Exchange (TEL) and the NASDAQ (TELN). For more information, visit the Telenor web site at www.telenor.com.

ARINC Incorporated is the world leader in transportation communications and systems engineering. The company develops and operates communications and information processing systems and provides systems engineering and integration solutions to five key industries: airports, aviation, defense, government, and surface transportation. Founded to provide reliable and efficient radio communications for the airlines, ARINC is headquartered in Annapolis, Maryland, and operates key regional offices in London and Singapore, with over 3,000 employees worldwide. ARINC is ISO 9001:2000 Certified.