York, United Kingdom and Martinsried/Munich, Germany. October06, 2008. ADVA Optical Networking today announced that THUS, one ofthe U.K.'s leading business service providers, has selected the ADVAFSP 150 to assist with the delivery of intelligent Ethernet servicesto enterprise customers throughout the U.K. Spanning more than10,000km, THUS' national next-generation network connects 190 pointsof presence, including major business centers such as London,Manchester and Glasgow. Built on a foundation of IP and MPLS overfiber, THUS' network will use the ADVA FSP 150 in its delivery of arange of intelligent Ethernet services with unparalleled last-mileflexibility, control and management.

Mark Bennett, head of portfolio at THUS stated, "As we continue toroll out converged network solutions, the ADVA FSP 150 helps us tooffer fully managed last-mile Ethernet access connections that canscale to meet demand, while delivering a Quality of Service (QoS)that our customers expect."

The ADVA FSP 150, featuring Etherjack® technology, provides THUS withintelligent demarcation, stringent monitoring of data from thenetwork core to the customer premise, verification of strict ServiceLevel Agreements (SLAs) and remote Operations, Administration andMaintenance (OAM). Designed to carry business-critical dataapplications, the ADVA FSP 150 simplifies the management andtransport of bandwidth-intensive broadband services throughout thenetwork, supporting data speeds from 10Mbit/s up to 1Gbit/s.

"THUS offers its customers one of the most innovative next-generationnetworks available in the U.K.," commented Fred Ellefson, vicepresident of global marketing at ADVA Optical Networking. "THUS isdeploying products from the ADVA FSP 150 family, to assist in thedelivery of the latest business voice, video and data applicationsacross its highly intelligent, scalable and flexible networkingplatform."

The ADVA FSP 150 is compliant with all standard Institute ofElectronics and Electronics Engineers (IEEE) specifications,including 802.3ah (Ethernet in the First Mile, EFM) and 802.1ag(Connectivity Fault Management, CFM) specifications. It featurescompliance with the new ITU-T Y.1731 standard for advanced EthernetOAM, and has also been rigorously designed for Metro Ethernet Forum(MEF) compliance.

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ABOUT ADVA OPTICAL NETWORKING

ADVA Optical Networking (FSE: ADV) is at the forefront of providingOptical+Ethernet solutions that advance next-generation networks fordata, storage, voice and video services. Our company's strength comesfrom passionate and dedicated employees, all sharing a common vision:a fast, customized response to customers' ever-changing needs. Ourinnovative FSP products and strong customer focus provide carriersand enterprises the ability to scale their networks and deliverintelligent, competitive new services. ADVA Optical Networking'ssolutions have been deployed at more than 200 carriers and 10,000enterprises around the world. For further information about ADVAOptical Networking: www.advaoptical.com.

ABOUT THUS

THUS is a UK-focused business telecommunications company boasting theUK's first next-generation network. THUS delivers innovative andeffective solutions to large organisations in the fast changingcommunications environment. Its early implementation of MPLS IP VPNtechnology put it at the forefront of convergent solutions enablingit to develop the expertise that customers need today and in thefuture. Under the Demon brand, THUS also offers a full suite ofadvanced business communication services to small and medium-sizedenterprises, ranging from broadband and MPLS to High Speed Internetand VoIP. THUS has achieved ISO/IEC 27001:2005, widely recognised asthe leading benchmark for information security management systems,for the Information Security Management System supporting itsMPLS-based next-generation network. In addition, THUS has maintainedISO 9001:2000, an internationally recognised standard for qualitymanagement systems for internal processes and procedures. THUS wasone of the first UK telecommunications service providers to achievefull ISO 9001:2000 certification for voice, data and Internet in2003. THUS plc is listed on the London Stock Exchange. For furtherinformation visit http://www.thus.net and http://www.demon.net

PUBLISHED BY:ADVA AG Optical Networking, Martinsried/Munich and Meiningen, GermanyADVA Optical Networking North America, Inc., Norcross, Georgia, USAADVA Optical Networking (Shenzhen) Ltd., Shenzhen, Chinawww.advaoptical.comFOR PRESS:Gareth Spencet +1 201 258 8293 (U.S.)t +44 1904 699 358 (Europe)t +86 755 8621 7400 (Asia)public-relations@advaoptical.comFOR INVESTORS:Wolfgang Guessgent +1 201 258 8302 (U.S.)t +49 89 89 0665 940 (Europe)t +86 755 8621 7400 (Asia)investor-relations@advaoptical.com

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