Poland's Netia Standardizes on Micromuse's Netcool Solutions for Assurance of Converged Communications Services; Siemens and Micromuse Partner to Provide Service Management Solution for IP, ATM, and Frame Relay Fixed Networks.

SAN FRANCISCO -- Micromuse Inc. (Nasdaq: MUSE), the leading provider of ultra-scalable, realtime business and service assurance software, today announced that Netia has purchased and is implementing Netcool(R) software as the core event management platform for its entire IP, ATM, and Frame Relay service delivery infrastructure. Netia is the largest independent fixed telephony provider in Poland, delivering converged voice and data service, and wholesale network services over a wholly-owned, fully digital fiber optic network. The Netcool suite of products is expected to increase Netia's operational efficiency and service visibility as the company continues to capitalize on Poland's growing business communications market.

"Micromuse's Netcool solutions help to further support our customers and differentiate our services through enhanced service level agreements and guaranteed uptime. The Netcool solutions will also enable Netia to offer superior service quality for innovative new services, such as Voice over IP and IP-based data services," said Michal Kaminski, manager of Network Management Department, Netia.

Netia required a scalable service management solution to rapidly identify and resolve service-affecting faults and support service level agreements in realtime and provide business and service analytics to help map future service delivery priorities. Prior to deploying the Netcool suite, Netia relied upon a variety of element, device, and domain management tools to monitor its complex network infrastructure and the services its delivers. Netia selected Micromuse's Netcool solutions for business service management for cost-effective consolidated operations management and advanced service quality management, visibility and intelligence. The complete, end-to-end Netcool implementation delivers automated, flexible fault discovery and fault correlation, analytics and automations of its IP-based services. Further, Micromuse's extensive library of over 1,000 off-the-shelf integrations facilitated the rapid deployment of the Netcool solutions across Netia's multi-vendor network components, services, and applications.

Siemens Communications, a Micromuse Channel resale partner, delivered the design and implementation of Netia's network and systems management infrastructure in conjunction with Winuel, a Polish systems integrator. Micromuse, Siemens, and Winuel collaborated closely to ensure the rapid implementation of the Netcool solutions and to deliver a management solution that provides Netia with a scalable service assurance solution and fast return on investment.

"Eastern European markets are growing rapidly and leading service providers such as Netia require service management solutions that will maximize existing infrastructure investments, scale to meet rising subscriber numbers and provide service visibility and assurance to help bring new services and products to market," said Richard Lowe, Micromuse's Senior Vice President for Europe, Middle East and Africa. "Micromuse's Netcool solutions provide a single, effective management interface that provides business intelligence, service visibility and fault monitoring in realtime, all the time to operations staff, business managers and customer care teams."

About Netia

Netia is the leading alternative fixed-line telecommunications operator in Poland. It operates on the basis of its own, state-of-the-art fiber-optic backbone network that connects the largest Polish cities as well as its local access networks. Netia provides a broad range of telecommunications services, including voice, data and network wholesale 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 ultra-scalable, 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, ITC DeltaCom, J.P. Morgan Chase, MCI, T-Mobile, and Verizon. Headquarters are located at 139 Townsend Street, San Francisco, Calif. 94107; [phone]. The Web site 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 we make are based on current expectations, and are subject to a number of risks and uncertainties. Actual results could differ materially.

Factors that could cause actual future results to differ materially from the forward-looking statements include: fluctuations in customer demand; the Company's ability to manage its growth (including the ability to hire sufficient sales and technical personnel); risks associated with the expansion of the Company's distribution channels; risk of new product introductions and customer acceptance of new products; rapid technological change which characterizes the Company's markets; risks associated with competition; risks associated with international sales; and the ability of the Company to compete successfully in the future; as well as risks relating to pending litigation, the completed restatement of certain of our financial statements, and other matters appearing under the caption "Risk Factors" in the Company's most recent Quarterly Reports on Form 10-Q and Form 10-K filed with the SEC and available on the Company's website. The Company disclaims any obligation or intention to update or revise any forward-looking statements.