Indiana Fiber Network Selects Tekelec's Signaling Solution; EAGLE 5 Signaling Platform Provides Reliable Call Control, Network Security; Supports Advanced Calling Services for 19 Operators Statewide.

MORRISVILLE, N.C. -- Tekelec (Nasdaq:TKLC), a leading developer of telecommunications products for next-generation fixed, mobile and packet networks, today announced a contract with Indiana Fiber Network (IFN) to deploy the EAGLE(R) 5 Signaling Applications System (SAS). With the addition of the Tekelec platform, IFN will be able to deliver signaling system 7 (SS7) functionality and its related benefits such as increased reliability for call control and network security to its 19 operator customers statewide. E[acute accent]IFN owns and manages a fiber-optic network used by a consortium of independent Indiana telephone companies to deliver voice, video and data services throughout the state. Tekelec's EAGLE 5 SAS platform provides a path to support advanced services such as local number portability (LNP), toll-free, calling card, calling name delivery and mobility management. In addition, gateway screening will ensure security by limiting the inbound and outbound network access to authorized users. E[acute accent]"After considering several signaling providers, we found none that could beat Tekelec's EAGLE platform in delivering an economical, reliable and secure SS7 signaling solution to help our operator customers provide advanced services to their subscribers," said Kelly Dyer, president, IFN. "Tekelec also supports our migration to a next-generation architecture without additional network facility costs." E[acute accent]Monty Johnson, president and general manager of Tekelec's Network Signaling Group, added, "This agreement illustrates Tekelec's unparalleled expertise in signaling, which enables operators to optimize their networks and reliably deliver advanced services to their subscribers. We are excited that IFN recognizes the benefits of our EAGLE platform to realize cost savings, increase network capacity and deploy advanced voice and data services."

E[acute accent]About Tekelec EAGLE 5 Signaling Applications System (SAS)

E[acute accent]The Tekelec EAGLE 5 SAS is a multi-protocol advanced signaling system. It hosts a variety of applications from a single, high-performance platform, including: signaling system 7 (SS7) signal transfer, number portability, signaling gateway, integrated services and data acquisition. The system supports the Sigtran suite of signaling protocols for next-generation network connectivity, creating a clear path forward to packet telephony and 3G networks.

E[acute accent]About Indiana Fiber Networks

E[acute accent]Indiana Fiber Network, a consortium of 18 independent telephone companies and one independently owned CLEC, was founded in 2002. It owns and manages a fiber-optic network in Indiana. Consortium members use the network to transport voice, video and data for their customers. www.indianafiber.net.

E[acute accent]About Tekelec

E[acute accent]Tekelec is a leading developer of now and next-generation signaling and switching telecommunications solutions, network performance management technology, and value-added applications. Tekelec's innovative solutions are widely deployed in traditional and next-generation wireline and wireless networks and contact centers worldwide. Corporate headquarters are located in Calabasas, CA. with research and development facilities and sales offices throughout the world. For more information, please visit www.tekelec.com.