Corporate Headquarters International Offices ADTRAN, Inc. 901 Explorer Boulevard Huntsville, AL 35806 USA P.O. Box 140000 Huntsville, AL 35814-4000 1 800 9ADTRAN 1 256 963-8000 1 256 963-8004 fax investorrelations@adtran.com www.adtran.com ADTRAN Networks Pty. Ltd. Sydney and Melbourne, Australia ADTRAN Singapore Pte. Ltd. Singapore ADTRAN Europe Limited Theale, Reading, United Kingdom ADTRAN Canada, Inc. Montreal and Toronto, Canada ADTRAN Networks Canada, Inc. Ottawa, Canada ADTRAN Networks S.A. de C.V. Mexico, D.F., Mexico ADTRAN International, Inc. Hong Kong ADTRAN Peru S.R.L. Lima, Peru ADTRAN GmbH Berlin, Bruchsal, Greifswald, Leipzig, and Munich,  Germany ADTRAN Networks Comunicações Ltda. Campinas, São Paulo, Brazil ADTRAN d.o.o. Zagreb, Croatia ADTRAN Oy Helsinki, Finland ADTRAN M.E.P.E. Athens, Greece ADTRAN Networks India Private Limited Hyderabad, India ADTRAN Holdings Ltd. Tel Aviv, Israel ADTRAN S.R.L. Milan, Italy ADTRAN K.K. Tokyo, Japan ADTRAN Sp. z.o.o. Warsaw, Poland ADTRAN, Unipessoal Lda. Lisbon, Portugal ADTRAN LLC Moscow, Russia ADTRAN s.r.o. Bratislava, Slovakia ADTRAN Switzerland GmbH Zurich, Switzerland ADTRAN International, Inc. – Saudi Arabia Riyadh, Saudi Arabia ADTRAN is an ISO 9001, ISO 14001, and a TL 9000 certified supplier. ADTRAN, Inc. is an Equal Opportunity Employer committed to utilizing  Minority Business Enterprises (MBE), Woman-Owned Business Enterprises  (WBE) and Disabled Veteran Business Enterprises (DVBE) whenever possible  and practical for procurements supporting ADTRAN and our customers. ADTRAN, NETVANTA, Bluesocket, vWLAN and Total Access are registered  trademarks of ADTRAN, Inc. ATLAS is a trademark of ADTRAN, Inc.  All other trademarks and registered trademarks mentioned in  this publication are the property of their respective owners. An Export License is required if these ADTRAN products are sold to a  Government Entity outside of the EU+8 (Austria, Australia, Belgium,  Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,  Germany, Greece, Hungary, Ireland, Italy, Japan, Latvia, Lithuania,  Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal,  Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the  United Kingdom). This is per DOC/BIS ruling G030477 issued June 6, 2003. Copyright © 2014 ADTRAN, Inc. All rights reserved. Printed in USA. AD345A TL19.1270