Newport Networks Group PLC
24 October 2005



                     Newport Networks Unveils Comprehensive
                    Security Suite for Session Border Control

          Three-pronged approach safeguards Nodes, Networks, Revenues           

Chepstow, UK. 24th October, 2005. Newport Networks is announcing the
availability of the industry's most comprehensive security suite for Session
Border Control in IP-based service infrastructures. Newport's Revenue, Core &
Nodal Protection (RCNP) security package addresses vulnerabilities in SIP
(Session Initiation Protocol), the standard for IP-based multimedia services.
RCNP prevents service fraud and protects network operators against attacks on
the 1460 session controller and other network elements such as Softswitches.

"Security continues to be of paramount concern to Tier 1 network operators
looking to future-proof their investments and infrastructures," says Mike
Wilkinson, Vice President of Marketing at Newport Networks. "Delivering a true
carrier-class Session Border Control solution requires a multi-faceted approach
that addresses not only device security, but also fraud and malicious attempts
to bring down the network."

Newport's three-pronged RCNP suite addresses:

Revenue Protection

Newport's 1460 Session Border Controller prevents service fraud by policing
calls to ensure that subscribers cannot use more bandwidth than they have
negotiated. Policing occurs in both media and Real Time Control Protocol (RTCP)
streams to prevent rogue users sending information through the RTCP Stream
undetected while paying only for use of the media stream. Signalling is policed
on a per-user basis to ensure that data is not exchanged between users prior to
call setup.  

Core Network Protection

Newport Networks' "Core" network protection adds critical security policies that
prevent Denial of Service (DOS) attacks from impacting core network equipment
such as Softswitches. The 1460 provides complete topology hiding for the
network, ensuring that the overall topology is not exposed to attacks while also
securing privacy of the subscriber base.

In keeping with a forward-looking, IMS-ready strategy, traffic directed at the
1460 can be separated into signalling and media. Media traffic is checked to
ensure that it has come from a valid registered user and bandwidth policed so as
not to exceed negotiated rates. Media coming from invalid sources is dropped at
wire speed. Signalling traffic is filtered according to user registration. For
those registered, signalling is rate-limited on a per session basis to ensure
that neither equipment malfunctions nor fraud attempts generate excessive
messages. Traffic from non-registered users is similarly rate-limited to prevent
its arrival rate from impacting Softswitches in core networks.

Node Protection

Newport Networks' Node Protection shields the 1460 from malicious Denial of
Service attacks.  The 1460's unique carrier-class design incorporates physically
separate management and data planes so that DOS attacks cannot disrupt
management data. Management interfaces are encrypted and kept physically
separate from traffic interfaces, with access lists and encrypted passwords used
to deny unauthorized access.

The RCNP security suite is included as part of a broad range of capabilities in
release 2.0 of Newport Networks' 1460 Session Border Controller. For more
information on Newport's RCNP security suite please visit
www.newport-networks.com/security


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
Border 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 Border 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 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 at
www.newport-networks.com


In the US:                              In Europe and Asia                     
Liza Kurtz                              Lulu Bridges / Simon Hudson
Tel: +1 (928) 282 6929                  Tavistock Communications
liza.kurtz@newport-networks.com         Tel:  +44 (0) 20 7920 3150
Kelly Williams                          lbridges@tavistock.co.uk
Tel: +1 (805) 370 1076                  
kelly.williams@newport-networks.com                                            
                                        For the company                        
                                        Mike Wilkinson                         
                                        VP Marketing                           
                                        Tel: +44 (0) 1291 635 830 (HQ)         
                                        Tel: +44 (0) 7717 344 831 (Cell)       
                                        mike.wilkinson@newport-networks.com    
                                                                               
                                                                              

                      This information is provided by RNS
            The company news service from the London Stock Exchange
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