[January 3, 2004]

Sonus Carried 10 Billion Minutes in December

BY JOHANNE TORRES

Sonus Networks Inc. (news - alert), a supplier of service provider voice over IP (VoIP - define - news - alert) infrastructure solutions, today announced that the company carried 10 billion minutes in the month of December. Service providers globally reported that they are now carrying that many minutes of customer traffic per month on their Sonus-based networks, representing a significant increase from the estimated 6 billion minutes per month in December 2003.

"VoIP technology is the first major structural shift in telecommunications infrastructure in the last fifty years. The market has now reached mainstream adoption as carriers worldwide are recognizing the benefits of VoIP architectures," said Mike Hluchyj, founder and chief technology officer, Sonus Networks. "Our announcement today is a major milestone not only for Sonus, but also for the industry at large. Carriers globally are continuing to accelerate their adoption of VoIP technologies, and we are pleased that Sonus continues to be recognized as a leader in such an exciting and important industry."

Chelmsford, Mass.-based Sonus provides voice over IP (VoIP) infrastructure solutions for wireline and wireless service providers. With its Open Services Architecture (OSA), Sonus delivers end-to-end solutions addressing a range of carrier applications, including trunking and tandem switching, residential and business access, network border switching and enhanced services. Sonus' voice infrastructure solutions, including media gateways, softswitches and network management systems, are deployed in service provider networks.

"With some of the most discerning carriers in the world as customers, Sonus continues to be a major driver in the adoption of VoIP solutions. Our research shows that carriers are driving increasing amounts of their customer traffic over their next-generation networks. This transition represents a tremendous opportunity for Sonus and the industry overall, as every carrier is expected to move to a VoIP architecture over time," said Kevin Mitchell, Directing Analyst with Infonetics Research.

In addition to today's news, it has been rumored that Sonus might also pick up a significant new customer in voice-over-broadband company Vonage Holdings Corp. Neither company has officially announced or denied such future plans at press time.

Sonus Networks Inc.
www.sonusnet.com