RCN Metro Optical Networks Selects Infinera for Regional Network

SUNNYVALE, CA--(Marketwire - July 28, 2008) - RCN Metro Optical Networks, a division of RCN Corporation (NASDAQ: RCNI), has selected Infinera (NASDAQ: INFN) Digital Optical Network to enhance capacity and capabilities in its mid-Atlantic regional network. The network provides flexible, scalable, cost-effective connectivity for RCN Metro's enterprise and carrier customers in this busy communications corridor.

Headquartered in New York, RCN Metro is the premier provider of communications services, offering businesses and carriers a comprehensive suite of facilities-based network solutions delivered through superior service and customer care. With a network leveraging unique rights-of-way from Maine to Virginia and out to Chicago, RCN Metro deploys custom solutions to service providers as well as companies in the finance, hospitality, media, government, health care and education industries.

RCN Metro selected Infinera for the scalable capacity of the Infinera DTN, which will enable it to meet customer demand for large capacity circuits quickly and cost-effectively. The ease of deployment of the Infinera solution enables RCN Metro to deploy additional capacity cost-effectively, with less analog engineering and far fewer truck rolls than on traditional DWDM systems. The separation of client-side modules from the line-side connectivity enables RCN Metro to provision services, including 10 Gigabit/second (Gb/s) wavelengths and 10 Gigabit Ethernet services, over the same line-side bandwidth.

"RCN Metro continually seeks to utilize best-in-breed technology as a way to enhance the services and support we provide to our customers. The Infinera platform we deployed is consistent with this philosophy," said Felipe Alvarez, President of RCN Metro.

The Infinera DTN combines scalable optical transport, integrated digital bandwidth management, and GMPLS-enabled service intelligence in a single platform. With more than 60 optical devices integrated on a pair of photonic integrated circuits, the Infinera DTN delivers a minimum of 100 Gb/s on every link. Infinera's digital architecture enables Bandwidth Virtualization™ for faster and simpler provisioning of services. An Infinera digital network creates a pool of bandwidth that can be used to deliver any service, from 1 Gb/s to 40 Gb/s, in a variety of protocols, anywhere in the network, at any time.

"RCN Corporation has a visionary growth strategy, a deep portfolio of assets and a broad range of customers across its region," said Infinera CEO Jagdeep Singh. "We are pleased to support RCN Metro Optical Networks with a state-of-the-art Infinera network which will enable them to offer their customers the unique speed and flexibility of Digital Optical Networks."

About Infinera

Infinera provides Digital Optical Networking systems to telecommunications carriers worldwide. Infinera's systems are unique in their use of a breakthrough semiconductor technology: the photonic integrated circuit (PIC). Infinera's systems and PIC technology are designed to provide customers with simpler and more flexible engineering and operations, faster time-to-service, and the ability to rapidly deliver differentiated services without reengineering their optical infrastructure. For more information, please visit www.infinera.com.

About RCN Metro Optical Networks

RCN Metro, http://www.rcnmetro.com, is a premier provider of high-capacity transport services for carriers as well as large and medium-sized businesses. RCN Metro offers a comprehensive suite of services including: Ethernet, SONET, Wavelength, Video Transport, Internet and more. With a network leveraging unique rights-of-way, spanning from Maine to Virginia and out to Chicago, RCN Metro deploys custom solutions to service providers as well as companies in the finance, hospitality, media, government, health care and education industries. RCN Metro is a wholly owned division of RCN Corporation.

About RCN Corporation

RCN Corporation, http://www.rcn.com, is a facilities-based, competitive broadband telecommunications services provider delivering digital television, high-speed data and voice services to residential and small-medium business customers under the brand names of RCN and RCN Business Services, respectively. RCN's primary service areas include Washington, D.C., Philadelphia, Lehigh Valley (PA), New York City, Boston and Chicago. (RCNI-G).

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 Infinera as of the date hereof; and actual results could differ materially from those stated or implied, due to risks and uncertainties. Forward-looking statements include statements regarding Infinera's expectations, beliefs, intentions or strategies regarding the future, such as the benefits and capabilities of our products and the Digital Optical Network's architecture, and we believe that its scalable capacity, enabling the ability to meet customer demand for large capacity circuits quickly and cost-effectively, we believe its ease of deployment enables the ability deploy additional capacity cost-effectively, and with less analog engineering and far fewer truck rolls than on traditional DWDM systems. Forward-looking statements can be identified by forward-looking words such as "anticipated," "believed," "could," "estimate," "expect," "intend," "may," "should," "will," and "would" or similar words. The risks and uncertainties that could cause our results to differ materially from those expressed or implied by such forward-looking statements include aggressive business tactics by our competitors, our dependence on a single product, our ability to protect our intellectual property, claims by others that we infringe their intellectual property, our manufacturing process is very complex, product performance problems we may encounter, our dependence on sole or limited source suppliers, our ability to respond to rapid technological changes, our ability to maintain effective internal controls, the ability of our contract manufacturers to perform as we expect, a new technology being developed that replaces the PIC as the dominant technology in optical networks, general political, economic and market conditions and events, including war, conflict or acts of terrorism; and other risks and uncertainties described more fully in our annual report on Form 10-K filed with the Securities and Exchange Commission on February 19, 2008, our public announcements and other documents filed with or furnished to the Securities and Exchange Commission. These statements are based on information available to us as of the date hereof and we disclaim any obligation to update the forward-looking statements included in this press release, whether as a result of new information, future events or otherwise.

Contact Information: For further information For RCN Corporation: Richard Ramlall SVP of Strategic and External Affairs 703-434-8430 Michael Houghton Communicreate 703-799-7383 For Infinera: Media: Jeff Ferry Infinera Tel. +1-408-572-5213 jferry@infinera.com Investors: Bob Blair Infinera Tel. +1-408-716-4879 bblair@infinera.com