Shares of Ericsson tumbled more than 20% this morning after the company said it expects disappointing third quarter results. Ericsson is projecting a 93% year-on-year drop in operating profit and a 14% decline in sales. The company expects operating profit of roughly $577 million on sales of $5.8 billion. Ericsson took $147 million in restructuring charges this year, and today acting CEO Jan Frykhammar said further cost cutting measures may be needed because of lower sales volumes.