ESPOO,FINLAND and MOUNTAIN VIEW, Calif. - May 23, 2000 - Nokia Networks, the infrastructure arm of Finland-based Nokia (NASDAQ: NOK) and ILOG (NASDAQ, EURO.NM: ILOG) today announced the selection of ILOG Java-based graphical user interfaces (GUIs), ILOG JTGO and ILOG JViews Component Suite, for Nokia's Network Management System (NMS) product portfolio. With support for open standards such as Java and CORBA, ILOG's software components will enable Nokia Networks' customers to perform their own adaptations based on the Nokia Networks Monitoring Platform. Additionally, third party systems can be easily integrated to the Nokia Networks Monitoring Platform.

"Nokia is committed to provide best-in-class solutions for web-based network management solutions. We selected ILOG components for their powerful mapping and geo spatial data handling," said Jari Eskola, product line manager, Monitor Products, Operational Support Systems, Nokia Networks. "Nokia is committed to the provision of Network Management Systems and Operational Support Systems, based on open systems and standards, for the benefit of our customers."

ILOG JTGO makes possible fast development of intuitive, graphically rich network management applications that run on standard web browsers. ILOG JViews provides finely tuned display algorithms to deliver outstanding graphics performance and scalability. Other features provided by ILOG JViews include Java graph layout algorithms and sophisticated mapping capabilities.

"ILOG's Java GUIs meets the requirements of Nokia's NMS portfolio by enabling web-based, visually-rich and customizable interfaces for network operators worldwide," said Manuel Montalban� vice president and general manager, ILOG Telecom Business Division. "Nokia's selection of our products underscores ILOG's technological leadership and experience in the telecommunications industry as the leading provider of network management interfaces."

ILOG network management GUIs were developed using extensive usability research that considers ergonomics and how operators will use the software - factors seen as crucial in the design of Operational Support System (OSS) user interfaces. Network operators using ILOG GUIs typically need less training and report fewer incidences of fatigue compared with less-sophisticated UIs. As a result, ILOG's visualization products - ILOG J/TGO, ILOG J/Views and now ILOG TGF - are becoming the de facto standard for network and service management applications.

About Nokia
Nokia is paving the way to the mobile information society with its innovative products and solutions. Nokia is the leading mobile phone supplier and a leading supplier of mobile, fixed and IP networks including related services. It also supplies multimedia terminals and computer displays. In 1998, net sales totaled EUR 13.3 billion (USD 15.7 billion). Headquartered in Finland, Nokia is listed on the New York (NOK), Helsinki, Stockholm, London, Frankfurt and Paris stock exchanges and employs more than 53 000 people.

About ILOG
Dually headquartered in Paris and Mountain View, Calif., ILOG was named the world's leading supplier of software components by International Data Corp. in its latest ranking. Founded in 1987, ILOG offers embeddable optimization, visualization and business rules components that dramatically shorten the development time of enterprise applications in the supply chain, telecommunications, transportation and financial services industries. ILOG already has a significant market share for its optimization software and is playing an active role in the emergence of the e-business software components market for automating the web and customer self service. Visit www.ilog.com for additional information.

ILOG is a registered trademark, and ILOG JTGO and ILOG JViews are trademarks, of ILOG. All other company and product names are trademarks or registered trademarks of their respective owners.