Companies Will Feel Pinch as Reservists Are Called to Duty.

Byline: Jessica Guynn

Sep. 26--Rick Myllenbeck's ready to go on 48 hours' notice.

Like thousands of his fellow military reservists, Myllenbeck is prepared to answer the nation's call even though that duty would take him far from his Dublin home, his two kids and his job as senior director of public relations at Emeryville software maker Sybase Corp. A lieutenant commander with the U.S. Naval Reserve, specializing in naval intelligence, he knows the drill. He has served on active duty for four years and in the reserves for 21 years.

"I am not one to sit on the sidelines. I love my job, but if I get called to active duty, I won't hesitate to go," Myllenbeck said. "I've been training for years for this, and if they need me, I'm there."

Corporations across the country are facing uncertainty as the first reservists are called on to join the U.S. military response to the Sept. 11 terrorist attacks. With 1.3 million Americans enlisted in the reserves, …