Santa Clara, Calif., April 11, 2006—WebEx Communications, Inc. (Nasdaq: WEBX), the leading provider of on-demand collaborative business applications, will report financial results for its first quarter of 2006 on Thursday, April 27, 2006 after the close of the market. Management will host the quarterly WebEx online meeting to discuss the results beginning at 5:00 p.m. Eastern time.

Interested parties may participate in the WebEx online meeting in one of the two ways:

• To join the WebEx online meeting and listen to the audio via the computer (WebEx VoIP), please go to webex.com/q1_earnings_voip
• To join the WebEx online meeting and listen to the audio via the telephone, please go to webex.com/q1_earnings_tele and call (617) 614-3682 and enter passcode 75748804.

For those unable to participate in the live WebEx meeting, a replay will be available beginning one hour after the conclusion of the meeting. To replay the recorded WebEx meeting, go to webex.com/q1_replay or to replay the audio only, call (617) 801-6888 and enter passcode 75748804.

About WebEx Communications
WebEx Communications, Inc. is the global leader of on-demand applications for collaborative business on the web. WebEx applications are used across the enterprise in sales, support, training, marketing, engineering and product design. WebEx delivers its range 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.

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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, statements regarding a future event. Factors which could contribute to risks and uncertainties include, but are not limited to, the failure of the event to occur as scheduled or at all. 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-K filed with the SEC on March 15, 2006. WebEx Communications, Inc. assumes no obligation to update forward-looking information contained in this press release.

NOTE: MediaTone is a trademark of WebEx Communications, Inc.