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NPS-520 User’s Guide
79
APPENDIX D
Customer Support
Please have the following information ready when you contact customer support.
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.
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 Site: www.zyxel.com, www.europe.zyxel.com
• FTP Site: ftp.zyxel.com, ftp.europe.zyxel.com
• Regular Mail: ZyXEL Communications Corp., 6 Innovation Road II, Science Park,
Hsinchu 300, Taiwan
Costa Rica
• Support E-mail: soporte@zyxel.co.cr
• Sales E-mail: sales@zyxel.co.cr
• Telephone: +506-2017878
• Fax: +506-2015098
• Web Site: www.zyxel.co.cr
• FTP Site: ftp.zyxel.co.cr
• Regular Mail: ZyXEL Costa Rica, Plaza Roble Escazú, Etapa El Patio, Tercer Piso, San
José, Costa Rica
Czech Republic
• E-mail: info@cz.zyxel.com
• Telephone: +420-241-091-350
• Fax: +420-241-091-359
• Web Site: www.zyxel.cz
• Regular Mail: ZyXEL Communications, Czech s.r.o., Modranská 621, 143 01 Praha 4 -
Modrany, Ceská Republika