NETWORKOSS LAUNCHES SINGLE-SOURCE SOLUTION FOR OPERATIONS SUPPORT SYSTEMS (OSS) FOR COMMUNICATIONS INDUSTRY

Full-service BusinessNow™ OSS Application Suite Enables New Generation Of Communications Service Providers To Get into Business Quickly; FiberStreet Is First Customer To Implement NetworkOSS Solution

New York, NY, July 25, 2000 - NetworkOSS (TM), a strategic solutions service provider for the global communications industry, formally launched operations today with the opening of two data centers, located in New York City and Sunnyvale, California and its first customer, FiberStreet, Inc., an emerging communications service provider. NetworkOSS offers a new generation of communications service providers a complete networked infrastructure and comprehensive set of OSS applications that enables them to jump-start their businesses. FiberStreet will be the first customer to implement NetworkOSS's Internet Service Provider (ISP) solution.

NetworkOSS targets small- and mid-size communications service providers by offering technical resources and expertise to build a custom OSS solution in a secure networked infrastructure. NetworkOSS has strategically forged alliances with highly recognized applications partners specializing in OSS functionality and leading systems integrators in North America and Europe, including Business Edge Solutions, Cap Gemini Ernst & Young, and Datamat.

BusinessNow™, NetworkOSS's application suite includes an array of industry leading OSS components including; interconnection, billing, customer management, sales force automation, trouble administrations, workforce administration inventory, provisioning and activation and network management. The Company will continue to add partners to expand its existing OSS portfolio that currently includes Cygent for eBusiness Support System Solutions (eBSS), Daleen Technologies for web-enabled billing, customer management, self care, and service activation, DSET for OSS interconnection software, OpenCon Communication Systems for billing mediation, Syndesis for automated provisioning and Vitria Technology, for OSS integration.

NetworkOSS serves Integrated Communications Providers (ICPs), incumbent carriers, cable companies, competitive local exchange carriers (CLECs), broadband service providers (Data CLECs), convergent carriers (voice, cable, Internet and live wire communications), Internet Service Providers (ISPs) and wireless providers with integrated applications suites from category-leading OSS vendors for their subscribers and other OSS suppliers.

"We are excited to offer our customers a fully scaleable, flexible and secure infrastructure to help them get into business faster and in a more cost-effective manner," said Steve Queroli, Chairman and Chief Executive Officer, NetworkOSS. "Our integrated and interoperable BusinessNow™ solutions, provided as both individual OSS components and as an OSS suite, are easily customized to work together with a customer's existing OSS package. We are helping FiberStreet deliver broadband services to their customers by offering immediate access to superior applications, through lower initial costs. Using our customized solution package, FiberStreet can streamline its billing process, making it user-friendly for its customers," continued Mr. Queroli.

"NetworkOSS has the best solution set for our immediate needs," said Ken Gullicksen, Chief Executive Officer of FiberStreet, Inc. "We selected NetworkOSS for its array of application partners, its focus on integration across its application suite, and its commitment to mission critical services."

NetworkOSS leverages its communications expertise, strong capitalization and outstanding applications and system integration partners, to take advantage of the high-growth opportunity in the communications industry to be the leading OSS service provider in this marketplace. The Company is committed to a full-service OSS model, which offers an unbiased collection of functions over a secured Virtual Private Network (VPN) to assure total security and reliability for a monthly rental fee.

NetworkOSS is a well funded, privately held company. The Company received an initial $13 million investment from Sevin Rosen Funds, Crescendo Ventures and Datamat SpA. The company has added to its Board of Directors: Jackie Kimzey, Partner of Sevin Rosen Funds, Jeff Hinck, Partner of Crescendo Ventures and Steve Queroli, a 20 year veteran in the telecommunications industry, President, Chief Executive Officer and Founder of NetworkOSS.

In addition to its fully operational data centers in New York City and Sunnyvale, California, NetworkOSS is expected to open its third data center in London, England later this year. The data center in London will help meet the demand for hosted OSS services to communications providers throughout Europe.

About NetworkOSS
NetworkOSS, The Power To Do Business Now,TM is a leading service provider for the global communications industry, offering timely, integrated Operational Support Systems (OSS) and computing resources within a secure, hosted environment. NetworkOSS's vertical expertise, breadth and depth of resources and complete infrastructure services, provides the new generation of Communications Providers with integrated applications suites from category-leading OSS vendors. BusinessNow™, NetworkOSS's application suites include an array of industry leading OSS components including: interconnection, billing, customer care, sales force automation, trouble administrations, workforce administration, inventory, provisioning and activation and network management. NetworkOSS, www.networkoss.com, is headquartered in Woodbridge, New Jersey, with operational data centers in New York City, Sunnyvale, California and soon to be opened, London, England, to handle its European Customer Base.

About FiberStreet, Inc.
FiberStreet, Inc. is a provider of next-generation broadband communications services to business. It is a venture-backed private company headquartered in San Jose, California.

About BusinessEdge Solutions, Inc.
BusinessEdge Solutions Inc. (www.businessedge.com) is a next generation, Industry eBusiness Integration firm specializing in eBusiness strategy, user experience design, web development, eBusiness integration and OSS integration. BusinessEdge focuses on B2B eBusiness enablement for the
Communications, Energy, Financial Services and Insurance Industries. Founded in 1999, with over 600 employees, BusinessEdge Solutions is headquartered in New York with offices in Edison, NJ, Dallas, Denver, Washington, D.C., and San Francisco.

About Cap Gemini Ernst & Young
Cap Gemini Ernst & Young is the leading business consulting and IT services firm for communications service providers, with a track record of over 2,400 successful telecom projects. Employing over 5,600 dedicated telecom professionals, Cap Gemini Ernst & Young Telecom, Media & Networks is organized as a Global Business Unit within the Cap Gemini Ernst & Young Group to ensure the telecom-specific focus clients need for success. The firm has more than 30 years of telecom experience, and is distinguished by providing a unique blend of both business consulting and systems integration for the Networked Economy. The U.S. Department of Justice, state Public Utilities Commissions, and other industry forums have recognized Cap Gemini Ernst & Young as experts in Operational Support Systems (OSS) and Business Support Systems (BSS) for communications.

About Cygent, Inc.
Cygent is the only Internet software company to offer a comprehensive eBusiness solution for the communications industry, linking wholesalers and retailers of communications services to each other and to their customers via the Internet. Cygent creates a speed-to-market advantage for communications service providers by accelerating their move to online business and enabling rapid deployment of new products and services. Cygent eBusiness Support Systems (eBSS) streamlines each step in the customer-retailer-wholesaler demand chain through an integrated Internet storefront that supports (1) one-to-one marketing, (2) online shopping and ordering, (3) bill presentment and payment, and (4) customer self-care. Cygent enables end-to-end solutions through alliances with communications and eBusiness leaders including BEA Systems, Deloitte Consulting, Cap Gemini Ernst & Young, MetaSolv, Portal Software, Sun Microsystems, and Vitria Technology. Cygent is a privately held company with headquarters in San Francisco and offices worldwide. For more information, please visit www.cygent.com.

About Datamat
Founded in 1971, Datamat's mission has been the first Italian company to deliver large Integrated Systems and software packages at predefined prices and schedules. Datamat is one of the leading players in the Italian ICT market for developing and distributing high level software packages and implementing complex software and systems integration projects. Datamat focuses new economy solution such as implementing web-enabled solutions and on-line services that will soon represent a big share of the company revenues. Today, Datamat's activities are mainly focused on the following markets: Telecommunications and Utilities, Bank and Finance, Public Administration and Healthcare, and Defense and Aerospace. The consolidated balance sheet of Datamat for 1999 shows revenues of $120M with a headcount of 1100.

About Daleen Technologies
Founded in 1989, Daleen (Nasdaq: DALN) is a leading provider of solutions that bond businesses and customers in the digital economy. Daleen's software solutions provide mission critical customer and partner management support for businesses that offer voice, data, web and applications hosting services over packet and circuit-switched networks. Daleen's eBusiness software products include eCare, for Internet-self care and partner management, BillPlex®, for customer management and billing, and SwitchFlow™, for service activation. The company distributes its eBusiness software products throughout the world via Business Alliance Partners and other leading certified systems integrators including Business Edge, Cap Gemini, Danet, Ernst & Young, Prolan and Unisys. Daleen is an active participant and provides leadership in industry forums such as the Global Billing Association, Ordering and Billing Forum (OBF), Internet Protocol Data Record (IPDR) working group, TeleManagement Forum and the Application Service Provider (ASP) Industry Consortium. In addition to its Boca Raton, FL headquarters, Daleen has regional offices located throughout the United States, and Toronto and London. For additional information regarding Daleen's products and services, visit the company web site at www.daleen.com.

About DSET Corporation
DSET Corporation (Nasdaq: DSET) is a leading provider of business-to-business e-commerce connectivity solutions for the global telecommunications marketplace. The DSET suite of electronic-bonding gateways is designed to interconnect the operations support systems (OSSs) of service providers that must exchange information and share network capabilities with trading partners to provision and maintain a growing range of services for customers in the competitive telecom market. DSET's local number portability solutions play a key role in enabling business and residential customers to change service providers without changing their local phone numbers. DSET is headquartered in Bridgewater, New Jersey, and the company's Web site can be viewed at www.dset.com.

About OpenCon Communication Systems
OpenCon Communication Systems (OCCS) is a privately held company founded in 1991, located in Piscataway, New Jersey, with a long and successful record in developing state-of-the-art telecom solutions for the global market. The OCCS portfolio of products includes the OCCS Billing Mediation Platform, a flexible data mediation engine for the telecommunications industry, and the OCCS TMN Gateway, a flexible TMN protocol mediation solution that interfaces new protocols such as CORBA and IDL with legacy protocols, such as TL1. OCCS solutions also include a GR-303 solution, a complete end-to-end Digital Loop Carrier to Digital Switch interface, as well as SONET/SDH DCC solutions providing the management interface to SONET and SDH equipment. For more information about OCCS and its entire solution suite, visit the company's Web site at www.opencon.com.

About Syndesis
Syndesis (www.syndesis.com) is automating the new network with market-leading provisioning software. The company's NetProvision™ software suite empowers communications providers to dynamically deliver customized and differentiated services to subscribers, thereby generating incremental revenues and improving efficiency. Headquartered near Toronto, Canada, the company's software is used by major service providers around the globe. Both Cisco Systems and Lucent Technologies license and resell the software under their own private brands, Cisco Provisioning Center and OneVision Alliance Configuration Manager, respectively.

About Vitria
Vitria Technology Inc. is a leading ebusiness platform provider. Vitria's ebusiness platform, BusinessWare, automates mission-critical business processes across the extended enterprise, reducing time to market, shortening lead times, lowering operating costs and increasing customer satisfaction. Vitria is a publicly traded company (Nasdaq: VITR) based in Sunnyvale, Calif. For more information, call 408/212-2700, visit the company's web site at www.vitria.com, or send email to info@vitria.com.

About Sevin Rosen
Sevin Rosen Funds, founded in 1981 is a premier venture capital firm. The firm focuses its investments on early state companies creating market leadership positions in Communications and eBusiness -infrastructure and solutions. The firm has launched numerous companies, including Compaq, Lotus, CIENA and Citrix, who have spawned new industries. It is actively investing in companies who are building the next stage of Internet economy. Sevin Rosen has offices located in Dallas, TX and Palo Alto, CA.

About Crescendo Ventures
Crescendo Ventures is a leading global venture capital organization focused on early-stage investment opportunities in communications and Internet infrastructure. Crescendo Ventures helps create and accelerate the growth of its portfolio companies by offering a unique, team-oriented approach to capitalization. In addition to providing consistent, long-term financial support, Crescendo Ventures combines industry expertise, years of investment experience and an invaluable network of partnerships and resources to build successful businesses. Founded in 1993, Crescendo Ventures manages more than $1 billion from its headquarters in Palo Alto, California and offices in Minneapolis and London.

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Contact: Amy Rosen/Christine Seketa
Citigate Sard Verbinnen
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