Denny's Corporation announced that Jose M. Gutierrez has been appointed to its Board of Directors. Mr. Gutierrez has held senior executive positions at AT&T and brings nearly 25 years of experience in print and digital advertising, finance and operations in the telecommunications industry. Mr. Gutierrez is currently President of Wholesale Solutions at AT&T. From 2010 to 2012, has was President and Chief Executive Officer of AT&T Advertising Solutions.