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Telefónica Selects Routing Platforms from Juniper Networks for Next-Generation Backbone Network

New IP Network Enables Telefónica to Offer Voice over IP Service in Brazil

SUNNYVALE, Calif., October 29, 2003 - Juniper Networks, Inc. (Nasdaq: JNPR) today announced that Telefónica has selected its entire suite of routing platforms for Telefónica's new IP backbone network. While initially deployed to support the voice service offer expansion throughout Brazil, Telefónica's Next-Generation Network (NGN) will ultimately enable the convergence of voice, data and video services in a single network, and will be installed and supported by Siemens Brasil Ltd.

Telefónica selected the E-, M- and T-series routing platforms for their advanced feature set, leadership performance, reliability and scale. The M- and T-series will operate at the core of the network and will aggregate traffic delivered by the E-series operating at the edge. This network deployment will enable Telefónica to expand their geographic reach and deliver services nationwide.

"Telefónica is transforming their business of networking with a new IP infrastructure that will enable them to offer new revenue-generating services beyond traditional voice offerings to an expanded market," said Tim Lambie, vice president, Canada and Latin America Sales, Juniper Networks. "Juniper's M- and T-series routing platforms will augment Telefónica's existing deployment of E-series, validating Juniper's ability to meet the stringent requirements of the world's leading service providers."

About the Telefónica Group in Brazil and Worldwide

The Telefónica Group is one of the ten largest global telecommunication conglomerates with an invoicing of US$28.4 billion in 2002. It is a leading communications company in Ibero-American countries and engages 120 thousand people. It carries out its business in more than 40 countries and has a total of 94 million clients. It is engaged in services related to fixed telephony, cellular telephony, data transmission, Internet, call center, publication of printed and electronic lists and directories, B2B solutions and security technology for businesses. To coordinate its companies' social responsibility initiatives, the Telefónica Group has created the Telefónica Foundation.

In Brazil, the Telefónica Group is the largest non-financial conglomerate and records revenues for R$19.3 billion (in 2002) with 20 million clients. In relation to the fixed telephony services, Telefónica has 12.5 million clients in the country's largest market, the state of São Paulo. The Telefónica Group is engaged in the Brazilian cellular telephony market jointly with the largest South American company, Vivo -a joint venture with Portugal Telecom-, which operates 17 million mobile phone lines. The Group also has the two largest operations in the country related to Internet services (Terra Lycos) and call and contact center services (Atento).

About Juniper Networks, Inc.

Juniper Networks transforms the business of networking by converting a commodity - bandwidth - into a dependable, secure, and highly valuable corporate asset. Founded in 1996 to meet the stringent demands of service providers, Juniper Networks is now relied upon by the world's leading network operators, government agencies, research and education institutions, and information-intensive enterprises as the foundation for uncompromising networks. Juniper Networks is headquartered in Sunnyvale, California. Additional information can be found at www.juniper.net.

Juniper Networks is registered in the U.S. Patent and Trademark Office and in other countries as a trademark of Juniper Networks, Inc. ERX, ESP, E-series, Internet Processor, J-Protect, JUNOS, JUNOScript, JUNOSe, M5, M10, M20, M40, M40e, M160, M-series, NMC-RX, SDX, T320, T640, and T-series are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.