Shares of Stratex Networks ( STXN) were among technology's winners Friday, climbing 15% after the maker of telecom equipment said that first-quarter results would be at the high end of its previous guidance. For the June quarter, the company expects to report earnings at the high end of its forecast of 2 cents to 4 cents a share. The company also sees revenue at the high end of its guidance, which called for a top line of $62 million to $66 million. Analysts polled by Thomson First Call project earnings of 3 cents a share and revenue of $63.6 million. "We are pleased with our anticipated results and with the excellent progress in meeting recent strong customer demand," the company said. Shares were trading up 44 cents to $3.41. Blue Coat Systems ( BCSI) sank 15% after the maker of network-security equipment said that it is conducting a voluntary review of its historical stock-option practices. The review will encompass the period from November 1999 to present. As a result of the review, Blue Coat won't be able to file its fiscal 2006 annual report on time. The company also withdrew its previously issued guidance for the first quarter, which ends this month, and said it expects to incur hefty legal and professional fees during the period. In May, the company forecast adjusted first-quarter earnings of 4 cents to 6 cents a share, with revenue of $36.1 million to $36.6 million. Analysts project earnings of 5 cents a share on revenue $36.4 million. Blue Coat shares were down $2.61 to $14.30. Shares of Radcom ( RDCM) slid 13% after the company cut its second-quarter revenue guidance. The company, which makes network test- and service-monitoring products for communications-service providers, now sees revenue of about $5.7 million. The company's earlier forecast was for revenue of $6 million to $6.5 million. A year earlier, the company posted revenue of $4.8 million. Shares traded down 26 cents to $1.78.