A YEAR OF 

## 2013 EMERGED AS A YEAR OF OPPORTUNITY FOR ADTRAN 

and I am pleased to report that we capitalized on these opportunities across multiple markets, geographies and technologies. During the year, we launched innovative products that have expanded our opportunities and introduced new services that help set the groundwork for ADTRAN to thrive in the systemic changes that are ongoing in our industry. Innovation, commitment and focus enabled us to substantially grow our 

core product revenue, deliver world-class customer satisfaction and substantially diversify our customer base. In short, we took the right steps in 2013 to move our company forward at every level. More importantly, we provided the framework that will enable our customers to evolve, change and grow; meeting their needs as they looked to make their networks stronger, faster and able to compete in an always-on, globally connected marketplace. 

