Micromuse's Netcool Solutions Support Growth of Multiservice Edge Market; Netcool Solutions Help Service Providers Manage Convergence of Network Devices and Services on MSE Platform

Business Wire, June 29, 2004

SAN FRANCISCO -- Micromuse Inc. (Nasdaq: MUSE), the leading provider of ultra-scalable, realtime business and service assurance software, today announced pre-integrated support for Multiservice Edge platforms via its Netcool(R) family of products. Micromuse recognizes the growing Multiservice Edge (MSE) market by offering established and best-in-class OSS management solutions for today's large, carrier-grade, multiservice networks.

Netcool solutions provide organizations with a comprehensive, realtime and actionable view of their business and IT operations, including the MSE platform, its core/subscriber interfaces and the IP/MPLS services it supports. This information allows service providers to smoothly migrate to MSE devices and helps minimize the risk of convergence implementations. Netcool solutions already support the Nortel Network Multiservice Provider Edge (MPE) 9000 series platform that was announced last month at Nortel Networks annual global conference for service provider customers.

"The broad spectrum of network equipment manufacturers and technologies that interoperate with Micromuse's Netcool suite is core to helping our Service Provider customers manage their converging multiple communications networks over IP/MLPS," said Craig Farrell, Micromuse's CTO. "Micromuse will continue partnering with industry leaders, like Nortel, to ensure that our customers can manage their MSE platforms more efficiently and cost effectively."

The Netcool suite ensures customers' ability to deliver an optimal service experience, manage operations efficiently, increase return on investment, and achieve process efficiencies across the OSS infrastructure featuring MSE platforms.

Micromuse will support MSE platforms by monitoring vendor-specific and industry-standard MIBs, including RFC 2547, and provides pre-packaged management support to MPLS, VoiP, IP VPN, ATM, Frame Relay, Ethernet, DSL and Wi-Fi devices and services.

About Netcool

Micromuse's Netcool(R) software solutions provide businesses with the assurance that their applications and services are up and operating. By allowing our customers to see what's happening throughout the infrastructure in realtime, Netcool applications enable them to respond to problems before revenue-supporting services are affected.

Netcool applications install out-of-the-box, deploy rapidly and scale to the largest environments. Micromuse's flagship, Netcool/OMNIbus(TM) application, includes a library of off-the-shelf software modules that allow our customers to collect and consolidate information from more than 1,000 environments spanning applications, systems, voice and IP, cable/broadband, switches and routers, and enterprise management systems.

About Micromuse

Micromuse Inc. (Nasdaq: MUSE) is the leading provider of realtime business and service assurance software solutions. The Netcool(R) software suite provides organizations with the assurance that their IT systems are supporting and driving profits 24 hours a day. Unlike traditional infrastructure management systems, Netcool solutions provide realtime end-to-end visibility and accurate troubleshooting from a business perspective. Such business intelligence allows organizations to respond to problems quickly, streamline workflow processes and improve business uptime. Micromuse customers include BT, Cable & Wireless, Deutsche Telekom, EarthLink, GE Appliances, ITC DeltaCom, J.P. Morgan Chase, MCI, T-Mobile and Verizon. Headquarters are located at 139 Townsend Street, San Francisco, Calif. 94107; (415) 538-9090. The Website is at www.micromuse.com.

Micromuse and Netcool are registered trademarks of Micromuse Ltd. All other trademarks and registered trademarks in this document are the properties of their respective owners. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations, but are subject to a number of risks and uncertainties.

The factors that could cause actual future results to differ materially from the forward-looking statements include the following: fluctuations in customer demand, the Company's ability to manage its growth (including the ability to hire sufficient sales and technical personnel), the risks associated with the expansion of the Company's distribution channels, the risk of new product introductions and customer acceptance of new products; the rapid technological change which characterizes the Company's markets, the risks associated with competition, the risks associated with international sales as the Company expands its markets, and the ability of the Company to compete successfully in the future, as well as other risks identified in the Company's Securities and Exchange Commission Filings, including but not limited to those appearing under the caption "Risk Factors" in the Company's most recent Quarterly Reports on Form 10-Q and on Form 10-K on file with the Securities and Exchange Commission and available on the Company's Website.