User’s Guide 353
APPENDIX I

Customer Support

In the event of problems that cannot be solved by using this manual, you should
contact your vendor. If you cannot contact your vendor, then contact a ZyXEL
office for the region in which you bought the device. Regional offices are listed
below (see also http://www.zyxel.com/web/contact_us.php). Please have the
following information ready when you contact an office.

Required Information

Product model and serial number.
•Warranty Information.
Date that you received your device.
Brief description of the problem and the steps you took to solve it.
“+” is the (prefix) number you dial to make an international telephone call.

Corporate Headquarters (Worldwide)

Support E-mail: support@zyxel.com.tw
Sales E-mail: sales@zyxel.com.tw
Telephone: +886-3-578-3942
Fax: +886-3-578-2439
Web: www.zyxel.com
Regular Mail: ZyXEL Communications Corp., 6 Innovation Road II, Science
Park, Hsinchu 300, Taiwan

China - ZyXEL Communications (Beijing) Corp.

Support E-mail: cso.zycn@zyxel.cn
Sales E-mail: sales@zyxel.cn
Telephone: +86-010-82800646
Fax: +86-010-82800587
Address: 902, Unit B, Horizon Building, No.6, Zhichun Str, Haidian District,
Beijing
Web: http://www.zyxel.cn