Contract Win

DAT Group PLC
23 June 2005


Embargoed until 07.00, 23 June 2005

                 DAT Wins Deal with Major U.S. Mobile Operator
DAT Mobility Platform Selected for Over-The-Air Device Management of Handsets /
                        Major Licensing Agreement Signed


London, 23 June 2005 - DAT Group plc (DAT), a leading developer of mobile device
management software, today announced a multi-million dollar deal with a leading
U.S. mobile phone operator. Under the terms of the deal, DAT will provide its
DAT Mobility Platform (DMP) as an important component in the operator's mobile
device management strategy. The U.S. operator will utilise DMP-powered
applications to provide over-the-air device management of phone settings,
firmware updates, content and device diagnostics to millions of unique handsets.

Centralised mobile device management is a critical factor in enabling operators
to provision phone settings, firmware updates, content and device diagnostics on
mobile phones while lowering their support costs. As a robust mobile device
management solution, the DAT Mobility Platform today is a complete solution that
makes such provisioning both easier and more cost effective.

DAT Mobile Device Management Solutions help mobile operators add value and
enhance service levels for subscribers. Applications powered by DMP provide
operators with the tools needed to meet growing subscriber demands. In trials
carried during 2005, the mobile operator integrated DMP into its existing
infrastructure and demonstrated the reliability and flexibility of DMP as a
carrier-grade service delivery platform.

David Hayes, CEO of DAT commented 'With this U.S.-based customer we believe we
are deploying the world's first authentic, in-network device management solution
- apart from simple SIM card management. DMP has proven it has the reliability
and the functionality to handle mobile device management for millions of devices
in one of the world's most demanding markets'.

'Following the successful completion of these trials, the mobile operator has
signed a software licence and master services agreement with DAT Group that will
give it a perpetual licence to use current DMP powered applications to provide
over-the-air device management of phone settings, firmware updates, content and
device diagnostics for up to six million unique handsets, which represents a
proportion of the customer's total subscriber base'.

                                     -ends-

For further information please visit www.datgroup.com or contact:

Nicole Meissner                Simon Hudson / Christian Taylor-Wilkinson
DAT Group PLC                  Tavistock Communications
Mobile: [phone]      Tel: [phone]
Office: [phone]

About DAT Group plc

DAT Group plc focuses on management solutions for mobile operators, device
manufacturers, retailers and corporations. The company offers a varied product
portfolio ranging from data synchronization (DS) to device management (DM),
firmware updates over-the-air (FOTA) and mobile device management (Enterprise
Assistant). DAT has unique expertise in smart devices across all platforms based
on its market-leading over-the-air (OTA) delivery platform. Based in the UK, the
company also has offices in Germany and the U.S. DAT is a public company listed
on the London Stock Exchange. More information about DAT is available at
www.datgroup.com



                      This information is provided by RNS
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