ADVA OPTICAL NETWORKING LAUNCHES MARKET'S FIRST WHOLESALE ETHERNET DEMARCATION DEVICE

ADVA FSP 150CM adds Etherjack intelligence to wholesale and mass
market Ethernet services

Norcross, Georgia, USA and Martinsried/Munich, Germany. April
29, 2008. ADVA Optical Networking today announced the launch of the
FSP 150CM, the latest member of its market-leading FSP 150 family of
intelligent Ethernet transport products. The FSP 150CM is the world's
first carrier-class modular Ethernet Network-to-Network Interface
(NNI) demarcation device, offering carriers a simplified solution for
bulk termination of Ethernet services or inter-carrier handoffs
required for wholesale service applications. The Ethernet NNI is a
critical element in the evolution of Ethernet services and is
required at boundaries between different maintenance regions or
different carriers. It performs an analogous function to ADVA Optical
Networking's industry-leading Etherjack® demarcation devices that are
now vital for providing the Ethernet service handoff at customer
premises.

The FSP 150CM addresses the continued growth in the global Ethernet
transport market, where intelligent Ethernet services are being
deployed across a range of infrastructures and protocols at
previously unprecedented levels. The FSP 150CM's unique design
enables carriers to meet this growth, while at the same time drive
down capital and operational costs. The FSP 150CM simplifies
provisioning across multiple network platforms, including Virtual
Local Area Network (VLAN), Provide Backbone Bridging-Traffic
Engineering (PBB-TE) and Multiprotocol Label Switching (MPLS). The
device can also be configured to a high level of transparency to
satisfy the needs of Ethernet local loop providers that are required
by their customer base to deliver transparency.

"ADVA Optical Networking is a pioneer in the Carrier Ethernet Access
Platform (CEAP) space and the FSP 150CM represents the company's
understanding of their customers' needs," commented Stan Hubbard,
senior analyst at Heavy Reading. "Operators frequently say that
effective interconnection of carrier Ethernet networks is one of the
last great hurdles to providing ubiquitous Ethernet service coverage
and unleashing long-term growth of the market. They are looking for
standards-compliant solutions that will help them extend their
service reach beyond their own networks in an intelligent and
cost-effective manner."

ADVA Optical Networking's FSP 150CM enables the evolution of Ethernet
from a service into a transport infrastructure capable of replacing
traditional transport technologies such as SONET or TDM. Optimized
for headend locations where carriers need to handle multiple Ethernet
local loops, the FSP 150CM is the ideal solution to consolidate and
aggregate Ethernet access traffic. The unique low-touch provisioning
design of the FSP 150CM simplifies network operation and enables
carriers to scale Ethernet services to a mass-market proposition. The
product interworks seamlessly with the ADVA FSP 150CC family of
compact demarcation devices that enable ubiquitous Ethernet services
across any medium, including fiber, copper and TDM leased lines.

"The Ethernet transport market is growing rapidly. Carriers need to
be able to respond to this demand in the most scalable and efficient
manner possible," stated Fred Ellefson, vice president of global
marketing at ADVA Optical Networking. "The FSP 150CM is the only
modular Ethernet NNI demarcation device on the market, offering
carriers a standards-based approach for wholesale Ethernet and bulk
retail services."

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

PUBLISHED BY:
ADVA AG Optical Networking, Martinsried/Munich and Meiningen, Germany
ADVA Optical Networking North America, Inc., Norcross, Georgia, USA
ADVA Optical Networking (Shenzhen) Ltd., Shenzhen, China
www.advaoptical.com

FOR PRESS:

Gareth Spence
t +1 201 258 8293 (U.S.)
t +44 1904 699 358 (Europe)
t +86 755 8621 7400 (Asia)
public-relations@advaoptical.com

FOR PRESS:

Wolfgang Guessgen
t +1 201 258 8302 (U.S.)
t +49 89 89 0665 940 (Europe)
t +86 755 8621 7400 (Asia)
investor-relations@advaoptical.com