InfoVista Rings in New Year with Industry Award and Analyst Accolades; VistaInsight For IP Telephony 2.0 Garners 2005 Internet Telephony Product of the Year Award and Validation from Yankee Group.

PARIS & HERNDON, Va. -- InfoVista (NASDAQ: IVTA; Euronext IFV - FR0004031649), the leading service-centric performance management software company, announced today that a major trade publication and industry analyst firm both separately validated VistaInsight(TM) for IP Telephony, InfoVista's management solution for assuring delivery of Internet Protocol (IP) telephony services across the enterprise. VistaInsight for IP Telephony is the recipient of Internet Telephony's 2005 Product of the Year Award and was acknowledged as a leading IP telephony management vendor in Yankee Group's recent report, "VoIP Management Solutions Guide: Managing Cisco IP Communications in the Enterprise."

Reduced toll costs, network infrastructure costs, and the promises of converged applications have motivated many enterprises to replace their PSTN-based PBX system with a VoIP-based IP PBX. However, simply replacing the old with the new did not necessarily lead organizations to realize VoIP's benefits and promises. For many enterprises, performance issues plagued their early VoIP deployments, lengthening the in-house testing and pilot phases, and delaying the production deployment. InfoVista's VistaInsight for IP Telephony solution has won industry recognition for its ability to address these challenges from pilot to production and support customers' end goal, an optimized VoIP service delivering superior quality of experience to the end user.

In Yankee Group's January 2006 report discussing the market for VoIP management solutions, the firm highlighted InfoVista's "strong presence in IP network performance management." The report cited the solution's "sophisticated" portal and reporting capabilities, strong carrier and service provider relationships and network management partners. The report also noted the solution's suitability for large-scale deployments. Recently InfoVista announced it had been selected to support one of the industry's largest Internet telephony deployments to date. According to Yankee Group, InfoVista's solution "overtakes established IP network performance management vendors such as Concord Communications."

In addition, the prestigious and well-recognized Internet Telephony 2005 Product of the Year award, given by the premier publication of the rapidly growing VoIP/IP telephony industry, heralds the VistaInsight for IP Telephony solution as one of the best IP telephony management products available today.

"VistaInsight for IP Telephony is a superior product offering, and this award recognizes the company's commitment to providing a best-in-class solution backed by innovation and quality assurance," said Greg Galitzine, editor in chief, Internet Telephony Magazine. "Companies like InfoVista will be at the forefront of driving the continued growth in the VoIP and IP telephony industry, and I look forward to seeing more industry-leading innovations from InfoVista in the future."

Internet Telephony published the complete list of award winners in its January 2006 issue. More detailed information on the winning solutions will be published in the February 2006 issue of the magazine. Internet Telephony is a monthly publication that is circulated to more than 40,000 service providers, next-generation service providers, MIS and telecom personnel, developers, systems integrators, VARs and interconnects, telcos/LECs, wireless providers, ISPs and cable companies and is a publication of the Technology Marketing Corporation (TMC).

"InfoVista has devoted substantial time and resources to creating innovative, superior capabilities for the rapidly growing VoIP and IP telephony marketplace," said Manuel Stopnicki, chief technology officer, InfoVista. "This award provides further validation that these investments have paid off and recognition that InfoVista is a leader in IP telephony with products that bring value, quality and superior ROI to enterprise and service provider customers."

About InfoVista

InfoVista is the Service-Centric Performance Management Software Company that assures the optimal delivery of business-critical IT services. Driven by a uniquely adaptive and real-time technology foundation, InfoVista solutions improve business effectiveness, reduce operating risk, lower cost of operations, increase agility and create competitive advantage. Eighty percent of the world's largest service providers as ranked by Fortune(R), as well as leading Global 2000 enterprises, rely on InfoVista to enhance the business value of their technology assets. Representative customers include ABN AMRO, Allstream, Banques Populaires, AXA, Banque de France, Bell Canada, British Telecom, Broadwing Communications, Cable & Wireless, Com Hem, Defense Information Systems Agency (DISA), Deutsche Telecom, France Telecom, Savvis Corporation, SingTel, Telefonica, and US Cellular. A Software Magazine 500 company, InfoVista stock is traded on the NASDAQ (IVTA) and on Eurolist by Euronext (FR0004031649). For more information about the company, please visit www.infovista.com.