Sprint Reaches New Milestones for Network Speed

  Sprint Reaches New Milestones for Network Speed

 Teaming with Ciena, Sprint demonstrates network readiness to support rapidly
            growing wireless and wireline data needs of customers

Business Wire

OVERLAND PARK, Kan. & HANOVER, Md. -- August 15, 2013

Sprint (NYSE: S) and Ciena (NASDAQ: CIEN) have teamed to achieve two
significant milestones in speed and capacity on Sprint’s network:

  *Earlier this year, the companies trialed, and Sprint has since deployed,
    one of the longest 100 Gigabits-per-second (Gbps) circuits in the United
    States with a live transmission that required no signal regeneration over
    a distance of 2,100 km, or 1,304 miles.

  *Last month, the companies successfully completed a live 400Gbps trial on
    Sprint’s network.

The trials validate Sprint’s leadership in deploying new network technologies
designed to meet exponential growth in demand for data by Sprint business and
consumer customers. This includes bandwidth-intensive cloud services and other
applications like streaming HD video, telepresence and high-capacity data
center connectivity.

Until recently, the Sprint network offered wireline services at speeds of up
to 10Gbps. The trials demonstrated the viability of using innovative
technology to achieve speeds up to 10 times faster (and up to 40 times faster
in the future), without requiring costly network upgrades to Sprint’s robust
fiber infrastructure. Sprint Ethernet Wave Services will support 100Gbps
speeds now, and Sprint expects to leverage Ciena’s coherent optical technology
to support services operating at 400Gbps in the future.

Key results from the two field trials:

100Gbps: The 100Gbps circuit trialed earlier this year is now integrated into
the Sprint optical network infrastructures and is in-serviced between Chicago
and Fort Worth, Texas. The 100Gbps link uses Ciena WaveLogic 3 coherent
optical processors on the 6500 Packet Optical Platform to enable Sprint to
successfully transmit data at 100Gbps over the 2,100km (1,304-mile) circuit,
with no regeneration of the signal at points in between. The longer distance
between regeneration points provides reduced latency, hardware benefits and
improved reliability, flexibility and performance for customers.

400Gbps: This trial was performed in the Silicon Valley area using existing
Sprint fiber infrastructure and Ciena’s 6500 with WaveLogic 3 cards; this
high-capacity link operated without error. This demonstrated the viability of
using 400Gbps channels alongside existing channels carrying live customer
traffic. As a result, Sprint foresees the opportunity to add a network
equivalent of high-speed traffic lanes for customers with high-demand
requirements.

“Customers have expressed their hunger for higher speed networks to support
their substantial data needs, which we project will only continue to grow
exponentially,” said Wayne Ward, vice president-Business and Product
Development, Sprint. “The 400Gbps trial demonstrates our ability to offer
higher speeds with our existing fiber, which means that our customers can feel
assured that our network is future-proofed to meet their needs as they evolve.
The delivery of 100Gbps and 400Gbps speeds will be critical as we launch our
Ethernet Wave Services and support a growing wireless infrastructure.”

As announced in 2012, Sprint is upgrading its optical backbone network with
Ciena’s 6500 Packet-Optical Platform as part of its Network Vision initiative.
The advanced network is expected to enable Sprint to enhance transport network
scalability, cost and performance. By adding Ciena's coherent optical
technology to the mix, Sprint can scale its core network initially to 40Gbps
and 100Gbps, and later to 400Gbps and beyond, as network demands dictate.

“Service providers are increasingly challenged to satisfy surging demand for
bandwidth-hungry services and applications,” said Francois Locoh-Donou, senior
vice president-Global Products Group, Ciena. “Ciena’s market-leading coherent
technology offers the flexibility, programmability, scalability and
cost-efficiency needed to meet these demands at 100Gbps speeds, 400Gbps speeds
and beyond. These recent trials illustrate Sprint’s ability to support
high-speed data and significantly increase the traffic-carrying capacity of
optical channels with no change to the underlying infrastructure – and that is
a significant coup for any operator in this highly competitive market.”

About Network Vision

Sprint’s Network Vision strategy consolidates multiple network technologies
into one new, seamless network with the goal of increasing efficiency and
enhancing network coverage, call quality and data speeds for customers across
the United States. Network Vision also delivers enhanced scalability and
performance for Sprint’s already robust wireline network, resulting in new
capabilities for business customers.

About Sprint Business Solutions

Sprint is a global provider of secure and reliable wireline and wireless
communication services. With a best-in-class all-IP network as the foundation,
Sprint helps enterprises unleash the full potential of business critical
applications through a single account team that understands converged, cloud
and mobility solutions, delivering an unrivalled customer experience.

For more information on Sprint MPLS and converged solutions, visit
www.sprint.com/convergence or contact your Sprint account team. To join in the
latest discussions and learn more about business solutions available through
wireline convergence, visit the Seamless Enterprise at
www.seamlessenterprise.com.

About Sprint

Sprint offers a comprehensive range of wireless and wireline communications
services bringing the freedom of mobility to consumers, businesses and
government users. Sprint served more than 53 million customers at the end of
the second quarter of 2013 and is widely recognized for developing,
engineering and deploying innovative technologies, including the first
wireless 4G service from a national carrier in the United States; offering
industry-leading mobile data services, leading prepaid brands including Virgin
Mobile USA, Boost Mobile, and Assurance Wireless; instant national and
international push-to-talk capabilities; and a global Tier 1 Internet
backbone. The American Customer Satisfaction Index rated Sprint as the most
improved company in customer satisfaction, across all 47 industries, during
the last five years. Newsweek ranked Sprint No. 3 in both its 2011 and 2012
Green Rankings, listing it as one of the nation’s greenest companies, the
highest of any telecommunications company. You can learn more and visit Sprint
at www.sprint.com or www.facebook.com/sprint and www.twitter.com/sprint.

About Ciena

Ciena is the network specialist. We collaborate with customers worldwide to
unlock the strategic potential of their networks and fundamentally change the
way they perform and compete. Ciena leverages its deep expertise in packet and
optical networking and distributed software automation to deliver solutions in
alignment with OP^n, its approach for building open next-generation networks.
We enable a high-scale, programmable infrastructure that can be controlled and
adapted by network-level applications, and provide open interfaces to
coordinate computing, storage and network resources in a unified, virtualized
environment. For updates on Ciena news, follow us on Twitter @Ciena or on
LinkedIn http://www.linkedin.com/company/ciena. Investors are encouraged to
review the Investors section of our website at www.ciena.com/investors, where
we routinely post press releases, SEC filings, recent news, financial results,
and other announcements. From time to time we exclusively post material
information to this website along with other disclosure channels that we use.

Note to Ciena Investors

Forward-looking statements. This press release contains certain
forward-looking statements based on current expectations, forecasts and
assumptions that involve risks and uncertainties. These statements are based
on information available to the Company as of the date hereof; and Ciena's
actual results could differ materially from those stated or implied, due to
risks and uncertainties associated with its business, which include the risk
factors disclosed in its Report on Form 10-Q, which Ciena filed with the
Securities and Exchange Commission on June 12, 2013. Forward-looking
statements include statements regarding Ciena's expectations, beliefs,
intentions or strategies regarding the future and can be identified by
forward-looking words such as "anticipate," "believe," "could," "estimate,"
"expect," "intend," "may," "should," "will," and "would" or similar words.
Ciena assumes no obligation to update the information included in this press
release, whether as a result of new information, future events or otherwise.

Contact:

Sprint
Stephanie Greenwood, 913-315-1612
Stephanie.greenwood@sprint.com
or
Ciena
Nicole Anderson, 410-694-5786
nanderso@ciena.com