“Atos Origin and Tango Telecom selected by Turkcell for the deployment of a new data charging solution”

Istanbul, Turkey and Limerick, Ireland, October 17th, 2005

Atos Origin, a leading international information technology (IT) services company and Tango Telecom, a leading provider of convergent charging and intelligent messaging solutions, today announce the successful deployment of a new data charging solution for Turkcell, the first mobile operator in Turkey. As Turkcell prime contractor, Atos Origin integrated its strategic partner's solution Tango Convergent Charging Node solution (CCN).

Atos Origin was chosen by Turkcell to integrate a unique solution for metering and charging of prepaid subscribers, with a seamless integration to the existing IN prepaid systems and provide billable CDRs for postpaid subscriber's activities.

The main platform, based on Tango CCN solution not only manages charging but also provides IP content analysis to allow multiple and rich charging scenarios based on the flowing data.

“Turkcell continues to invest in its infrastructure to keep pace with advances in technology, achieve efficiencies and remain competitive globally. Tango CCN provides real-time performance and functionality that allows Turkcell to continue the rollout of new value added services to prepaid and postpaid customers. This solution will support Turkcell in continuing the delivery of the highest possible quality and variety of service to the market”, said Ruhi Dogusoy, Chief Operating Officer of Turkcell.

“We are happy to successfully complete another innovative project and contribute to Turkcell's success with the Tango CCN installation. This project is a result of Atos Origin's rich know-how and commitment on Telecom sector,” said Luigi Giacalone, Vice President Mediterranean & Africa at Atos Origin.

“The selection and deployment of the Tango CCN by Turkcell reinforces our position as a major provider to the global mobile carrier market”, said Colm Ward, CEO of Tango. “We are now expanding our long term partnership with Atos Origin to provide our charging and messaging products to operators across all geographies”.

About Turkcell
Turkcell is the leading GSM operator in Turkey with 26.7 million post-paid and prepaid customers as September 30, 2005. Turkcell provides high-quality wireless telephone services throughout Turkey and has coverage of 100% of the towns with more than 5,000 inhabitants. Turkcell provides roaming with 467 operators in 180 countries as of October 7, 2005. Turkcell is the only NYSE listed company in Turkey. Turkcell has interests in international GSM operations in Azerbaijan, Georgia, Kazakhstan, Moldova, Northern Cyprus and Ukraine.

About Atos Origin
Atos Origin is an international information technology services company. Its business is turning client vision into results through the application of consulting, systems integration and managed operations. The company's annual revenues are more than EUR 5 billion and it employs over 46,000 people in 40 countries. Atos Origin is the Worldwide Information Technology Partner for the Olympic games and has a client base of international blue-chip companies across all sectors. Atos Origin is quoted on the Paris Eurolist Market and trades as Atos Origin, Atos Euronext Market Solutions, Atos Worldline and Atos Consulting.

Press Contacts:

Stephanie Berthe
Tel: +39 06 8307 4289 / 4397
Email: stephanie.berthe@atosorigin.com

Emilie Moreau (corporate)
Tel: +33 1 55 91 24 74
Email: emilie.moreau@atosorigin.com

About Tango Telecom
Tango Telecom is a leading provider of real-time Convergent Charging and Intelligent Message Delivery Solutions. Tango Solutions can be deployed alongside existing charging and service delivery platforms, providing immediate service launch and rapid time to revenue. Alternatively, Tango can provide replacement infrastructure that gradually replaces the legacy platforms as the operator launches newer next generation services. Based at the National Technology Park, Limerick, in Ireland, Tango's customers include global deployments with major operators such as Turkcell, Vodafone and America Movil. Tango's products are available through a global network of Systems Integration Partners, Resellers and OEMs.

For further information, contact:
Richard Choi, Vice President Sales & Marketing
Tango Telecom Limited

T: +353 61 503 051 - F: +353 61 338 065
richard.choi@tango.ie - http://www.tango.ie