Web Collaboration Provider Exposes the Masses to Software as a Service

SANTA CLARA, Calif., October 3, 2005—A new report from IDC, the premier global provider of market intelligence, advisory services, and events, ranks WebEx Communications (Nasdaq: WEBX) number one among the top 25 on-demand software providers and number one among the top five Software as a Service (SaaS) providers.

IDC’s September 2005 report, entitled Worldwide Software on Demand 2004 Vendor Analysis: Top 25 On-Demand Providers Take Shape (IDC #33879, September 2005) calls WebEx “a favorite among line-of-business (LOB) subscribers” and points to the company’s recent acquisition of Intranets.com as a possible opportunity for WebEx to extend its on-demand offering into the midmarket, which IDC believes will be a key growth area for software on-demand delivery. Intranets.com also made the list of the top 25 on-demand software providers.

“WebEx is helping customers experience on-demand software delivery by providing more people with access and exposure to the model," said Erin Traudt, IDC software as a service research analyst and co-author of the report, “Recent studies have shown increased customer interest in the SaaS delivery model and web conferencing applications is high on the list in terms of SaaS adoption."

The report also states that, “IDC finds that not only are cost-savings benefits and rapid implementation times fueling overall SaaS adoption, but also intangible benefits such as increased employee productivity and efficiencies are being recognized.”

“We are now seeing a new generation of SaaS applications that are cost-effective and surpass legacy on-premise software in terms capabilities, customization and ease-of-use,” said Subrah Iyar, CEO of WebEx. “WebEx applications accelerate business by allowing companies to leverage the web for the collaborative aspects of business processes such as sales presentations, employee training and customer support.”

WebEx manages a global network over which it delivers a suite of on-demand applications including applications for web conferencing, online sales, web-based support, remote training and online events. These applications help businesses accelerate sales cycles, increase revenue, improve employee productivity, speed products to market, enhance customer satisfaction and decrease training and travel costs.

About WebEx Communications, Inc.
WebEx Communications, Inc. is the leading provider of on-demand collaboration applications and services. WebEx applications are used across the enterprise in sales, support, training, marketing, engineering and product design. WebEx delivers its suite of applications over the WebEx MediaTone Network, a global network specifically designed for secure delivery of on-demand applications. WebEx Communications is based in Santa Clara, California and has regional headquarters in Europe, Asia and Australia. Please call toll free 877-509-3239 or visit www.webex.com for more information.

###

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements may be identified by use of the terms anticipates, believes, continue, could, estimates, expects, intends, may, plans, potential, predicts, should or will, or the negative of those terms or similar expressions. These forward-looking statements are subject to significant risks and uncertainties. Actual results may differ materially from those described in such statements as a result of these risks and uncertainties. In particular, these forward looking statements include, but are not limited to, the statement that WebEx applications improve collaboration and increase productivity in sales, support, training, marketing, engineering and product design. Factors which could contribute to risks and uncertainties include, but are not limited to, the failure of customers to use WebEx applications effectively in their businesses and to reduce their other expenses. A fuller discussion of the risks and uncertainties that could affect WebEx Communications, Inc. are more fully set forth in WebEx Communications, Inc.’s filings with the Securities and Exchange Commission, including WebEx’s Form 10-Q filed with the SEC on August 9, 2005. WebEx Communications, Inc. assumes no obligation to update forward-looking information contained in this press release

MediaTone is a trademark of WebEx Communications, Inc.