Compatibility testing successfully completed between Newport Networks and Nortel

17 August 2005

Newport Networks Group PLC

For immediate release

Compatibility testing successfully completed between Newport Networks and Nortel

Newport Networks, the developer of carrier-class VoIP session controllers, is pleased to announce that its 1460 session controller (Software Release 1.5) was awarded a Certificate of Compatibility from Nortel*.

The 1460 session controller with Software Release 1.5, was awarded a Certificate of Compatibility after completing laboratory interoperability testing with Nortel's Multimedia Communication Server(MCS)5200 (Software Release 3.0) and Communication Server(CS)2000 (Software Release SN07). The 1460 session controller will now carry the Nortel compatible product designation.

*Nortel is a trademark of Nortel Networks.

Contacts:

John Everard, Chief Executive Newport Networks Group PLC Tel: 01291 635830

Simon Hudson Tavistock Communications Tel: 020 7920 3150

About Newport Networks

Newport Networks Group PLC, listed on the Alternative Investment Market of the London Stock Exchange in May 2004, has designed and developed the 1460 session controller to solve existing commercial and technical problems in the provision of Voice over IP (VoIP) and Multimedia over IP (MoIP) services. The 1460 session controller addresses the key service delivery issues of quality and security, enabling service providers to create new revenue streams from VoIP and MoIP while controlling the cost of delivery. Based in the UK and North America, Newport Networks has an experienced team headed by Chairman Sir Terry Matthews and CEO John Everard. The team has a proven track record of identifying new service provider network technologies, developing products and managing the growth of international businesses.

Further information is available at www.newport-networks.com