Cisco Systems, Inc.
(NASDAQ: CSCO) today announced that it is extending its previously
announced tender offer for all outstanding shares of WebEx
Communications, Inc. (NASDAQ: WEBX) until 12:00 Midnight, New York
City time, on Monday, May 21, 2007 (which is the end of the day on
May 21, 2007). The tender offer is being extended because certain
foreign regulatory approvals necessary for the consummation of the
tender offer are not expected to have been received by the previously
scheduled expiration date of Monday, May 7, 2007. Cisco expects to
complete its tender offer in the first half of the fourth quarter of
Cisco's fiscal year 2007.

As announced previously, on March 27, 2007, Cisco, through its wholly
owned subsidiary Wonder Acquisition Corp., commenced a tender offer
for all outstanding shares of WebEx at a price of $57.00 per share
net to the seller in cash without interest, less brokerage fees and
less any required withholding taxes, pursuant to the definitive
merger agreement between Cisco and WebEx.

As of 3:00 p.m., New York City time, on Friday, May 4, 2007, an
aggregate of approximately 35 million shares of WebEx common stock had
been tendered into, and not withdrawn from, the offer.