Sonus Wins in Mexico

Sonus Networks and Alestra partner to bring sophisticated communications to Mexico

November 13, 2007

2 Min Read

WESTFORD, Mass. -- Sonus Networks, Inc. (Nasdaq: SONS - News), a leading supplier of service provider IP-voice infrastructure solutions, announced today that Alestra, an advanced data and voice telecommunications services operator, majority owned by Mexican leading industrial conglomerate Alfa and 49 percent-owned by AT&T Inc, plans a large- scale expansion of its Sonus-based network. Alestra's Sonus-based next- generation IP-voice network will be the most advanced Voice over IP communications network in Mexico. By leveraging Alestra's own Internet Protocol (IP) and MPLS network, Alestra is able to increase teledensity in the region without installing costly new traditional last-mile telephone connections. In addition, Alestra is partially relying on Sonus Networks as well as other Advanced IP Technology partners to help meet recent regulatory requirements mandating network operators to provide Local Number Portability (LNP) during 2008.

The initial phase of the project allows for Alestra to decommission legacy infrastructure for Local Service in major markets such as: Mexico City, Monterrey, Guadalajara, Tijuana, and Juarez. Sonus' proven ability to deliver end-user services over its IP Multimedia Subsystem (IMS)-based network infrastructure, coupled with its robust solution for efficient LNP implementation and support were critical factors in Alestra's decision. Alestra has been a Sonus customer since 2001, when the company selected Sonus to offload Internet traffic from their circuit switched network. Since the initial deployment, Alestra has continued to leverage its Sonus network in a variety of applications, including H323 and SIP routing, PBX and IP-PBX termination, and carrier peering via TCP/IP. This recent expansion extends Alestra's Sonus footprint into its local access network, improving operating performance and supporting the roll out of business-critical and lifestyle- changing new services. Mexico's policies support the evolution and expansion of its communications infrastructure, and Alestra is leading this new wave of change in the region.

"Mexico is rapidly expanding its position as a leader in the digital revolution. Alestra is working with all relevant players in the industry, government and academia to build the foundations of the communications network of the future. We've witnessed first-hand the benefits a Sonus-based network has delivered in other parts of our network, and we are pleased to be leveraging those advantages at the edge of our network where we can not only achieve regulatory compliance, but also positively impact our customers' experience," said Rolando Zubiran, CEO, Alestra.

Sonus Networks Inc. (Nasdaq: SONS)

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