Cisco Announces Extension

SAN JOSE, Calif. -- Cisco Systems, Inc.(NASDAQ: CSCO) today announced that it is extending its previouslyannounced tender offer for all outstanding shares of WebExCommunications, Inc. (NASDAQ: WEBX), until 12:00 Midnight, New YorkCity time, on Monday, May 7, 2007 (which is the end of the day on May7, 2007). The tender offer has been extended because certain foreignregulatory approvals necessary for the consummation of the tenderoffer have not yet been received, as Cisco anticipated in the Offerto Purchase dated March 27, 2007. Cisco continues to expect tocomplete its tender offer in the fourth quarter of Cisco's fiscal year2007.

As announced previously, on March 27, 2007, Cisco, through itswholly-owned subsidiary Wonder Acquisition Corp., commenced a tenderoffer for all outstanding shares of WebEx at a price of $57.00 pershare net to the seller in cash without interest, less brokerage feesand less any required withholding taxes, pursuant to the definitivemerger agreement between Cisco and WebEx. The tender offer waspreviously set to expire at 12:00 Midnight, New York City time, onMonday, April 23, 2007.

As of 5:00 p.m., New York City time, on Monday, April 23, 2007, anaggregate of approximately 38.1 million shares of WebEx common stock,or approximately 75.9% of WebEx's outstanding shares, had beentendered into, and not withdrawn from, the offer.

Cisco Systems Inc.