FOR IMMEDIATE RELEASE

Teltone Enhances Gauntlet Cyber Security Suite
for Utilities

Latest version of NERC CIP compliance solution adds improved security, performance and administrative features

April 22, 2008 (BOTHELL, Wash.) – Teltone Corporation, a leading provider of secure communications solutions for the power utility industry, today announced expanded performance and administration features for its Gauntlet cyber security suite. Teltone Gauntlet enables utilities to quickly comply with the cyber security requirements recently mandated by the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP).

Teltone Gauntlet version 2.1 adds a host of features which provide faster performance, more reliable security, improved administration and configurability.

“With the impending June 30, 2008 deadline for NERC CIP compliance, utilities are under intense pressure to implement a proven cyber security solution. Teltone Gauntlet is rapidly becoming adopted as the preferred platform for protecting remote devices, due to its robust architecture, user-friendly administrative and reporting features, and peerless customer support,” commented Debra Griffith, Teltone CEO.

The leading solution for NERC CIP compliance, Teltone Gauntlet provides unique benefits to security managers tasked with securing their utility communications:

• Full NERC CIP 002-009 support
• No changes to in-service equipment or software; no procedural changes
• Convenient, one-click NERC CIP audit report generation
• Transparent, uninterrupted user access to substation devices, even in emergencies
• Distributed architecture for maximum resiliency
• Proven, industrially hardened gateways (Gauntlet Dial-up Gateway; RuggedCom RuggedRouter™ RX1100)
• Fastest time to compliance of any available solution

Teltone Gauntlet version 2.1 will be demonstrated at the upcoming Chicago IEEE PES Expo (RuggedCom booth) and the Orlando UTC Telecom Expo (Teltone and RuggedCom booths).

For additional information on Teltone Gauntlet, click here or email sales@teltone.com. For information about the RuggedCom RX1100, visit www.ruggedcomgauntlet.com.

About Teltone

Teltone Corporation, Bothell, Washington, USA, develops and manufactures high reliability telecommunications products for utilities, corporations, and other organizations. With more than three decades in the telecom industry, Teltone has grown an extensive, worldwide product base and is known for its product reliability, responsiveness, and quality customer support. Our communications products are ubiquitous in substations across the U.S. and Canada.