Cramer Delivers Netcool Ready Solution.

Business Editors/High-Tech Writers

SAN FRANCISCO & VIENNA, Va.--(BUSINESS WIRE)--Nov. 27, 2001

Integrated Solution Helps Service Providers Offer

Advanced Provisioning and Service Assurance

Cramer Systems, a leader in inventory and provisioning automation software for the global telecommunications industry, and Micromuse Inc. (Nasdaq: MUSE), the leading provider of service and business assurance software, today announced that the Cramer Dimension platform is now a Netcool(R) Ready(TM) solution and the integration is generally available.

The integrated solution between Cramer Dimension and Micromuse's Netcool suite is designed to help service providers enhance fault management operations. The two companies jointly developed software adaptors to facilitate the integration: the Netcool/Impact Data Source Adapter(TM) for Cramer and the Cramer Adaptor for Micromuse. The integrated solution will help service providers with large, complex networks streamline Operations Support Systems (OSS) processes to reduce systems integration costs.

The integration enables Micromuse's flagship Netcool/OMNIbus(TM) application to enhance the fault and event data it collects with detailed information about the relationship between network devices and affected services, as maintained by the Cramer inventory platform. The integrated solution relates Netcool-collected faults with information from devices and services that are impacted by them and displays this information in the Netcool EventList(TM) console. With this enhanced fault information, operations teams can manage networks and services from a broader perspective. Understanding how services are affected by outages in the infrastructure will help service providers better prioritize the allocation of operations resources, and to more proactively support service level agreements.

"By seamlessly integrating the market's leading applications with Cramer's carrier resource platform, we're providing carriers a fast track to smarter, more effective and complete OSS solutions," said Kimber Lewis, President of Cramer Systems Inc. "Micromuse is a trusted global leader whose applications are widely deployed, and our collaboration is the first step in uniting the OSS to provide customers with better service, and carriers with cost-efficient operations."

"We are pleased to partner with Cramer to help service providers make the most of their network investments," said Katrinka McCallum, Micromuse's Executive Vice President & COO. "Understanding the network is key to successful OSS and with Cramer, we're providing a cost effective foundation for a complete OSS environment that delivers faster time-to-market and greater ROI."

Availability

The integration is comprised of two components. The Cramer Adaptor for Micromuse is available from Cramer. Please visit www.cramer.com for more information. The Netcool/Impact Data Source Adapter for Cramer is available from Micromuse. Please visit www.micromuse.com for more information.

About the Cramer Solution

Cramer provides a uniquely capable family of operations support system (OSS) automation products, centered on a core inventory carrier resource platform. For the first time, an integrated product set addresses all the underlying issues that have made automation so difficult:

- A complete, accurate and maintained inventory of network resources

- Active management of the complex relationships between services and network
resources

- Support for network scale and complexity - multiple technologies, multiple
vendors and multiple services

- Intelligent automation tools that link engineering, operations and
implementation processes to network resource information

- Open access to comprehensive network resource information for other
applications (e.g. service assurance, fault management)

- Clarity about the capabilities and roles of order management, workflow,
activation, network management and traditional inventory systems

Since its launch in 1998, Cramer has been selected by more operators than any competing application. Its user base spans Tier 1 and Tier 2 telcos in the fixed line, mobile and IP sectors, providing a uniquely powerful way to improve capital and operational efficiency.

About the Netcool(R) Suite

Micromuse's Netcool(R) software suite provides businesses with the assurance that their networks, services and applications are working. By allowing our customers to see what's happening throughout the infrastructure in realtime, Netcool applications enable them to respond to problems before they cause network-based business services to go down.

Netcool suite applications install out-of-the-box, deploy rapidly and scale as networks grow. Micromuse's flagship, Netcool/OMNIbus(TM) application, includes a library of off-the-shelf software modules that allow our customers to collect and consolidate fault information from more than 300 popular environments spanning voice and IP, cable/broadband, switches and routers, and enterprise management systems.

About the Micromuse Alliance Program(TM)

The Micromuse Alliance program(TM) provides Micromuse and its alliance members with the resources to cooperatively pursue business, technical and marketing opportunities. A significant number of vendors have joined Micromuse's Alliance program to develop and provide off-the-shelf integrated solutions for mutual customers. Toward that end, Micromuse actively enlists best-in-class solutions providers offering applications complementary to the Netcool suite. Micromuse provides its approved Netcool Ready(TM) program members with the Netcool/Software Developers Kit(TM) (Netcool/SDK(TM)) application. Provided in CD-ROM format, the Netcool/SDK provides the tools necessary to develop integration modules for Netcool software.

About Cramer Systems

Cramer Systems (www.cramer.com) provides a complete carrier resource platform for telecom Operations Support Systems (OSS). Cramer allows telcos to connect the supply and demand sides of their business, converting raw bandwidth into revenue generating services - a market that is expected to grow to $3.9bn by 2003 (source: Dataquest). By automating and speeding up the provisioning process, Cramer helps telecom operators to launch new services more quickly, accelerate revenues and improve capital and operational efficiencies. Cramer's products are either embedded as part of an overall solution from major telecom equipment vendors, or delivered through the leading telecom systems integrators.

Cramer customers cover leading mobile (including 3G), convergent and fixed operators, including, BT Ignite, Cable and Wireless, KPN Telecom, BT Cellnet, KPN Mobile, Infostrada and Cegetel. The company's European headquarters are in Bath, England. North American headquarters are in Vienna, VA, with further offices located in Denver. Cramer and the Cramer logo, whether or not appearing with the trademark symbol, are trademarks of Cramer Systems Limited.

About Micromuse

Micromuse Inc. (Nasdaq: MUSE) is the leading provider of service and business assurance software. Micromuse's recent list of awards include the TeleStrategies OSS Excellence Award for Best New Product for the Netcool(R)/Visionary(TM) application, and Web Hosting Magazine Editor's Choice Award. In addition, Micromuse has been recognized in the Forbes 500, Bloomberg's Top 100 Stocks, the Barron's 500, Deloitte & Touche's Technology Fast 500, San Francisco Chronicle 500, Individual Investor's Index of America's Fastest Growing Companies and Network World's NW200. Micromuse customers include AT&T, BT, Cable & Wireless, Cellular One, Charles Schwab, Deutsche Telekom, Digex, EarthLink, GE Appliances, ITC^DeltaCom, J.P. Morgan Chase, One2One, Verizon and XO Communications. 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 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 Web site.