Appendix A Customer Support - ZyXEL Communications ES1100-16 User Manual

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.
See https://www.zyxel.com/homepage.shtml
https://www.zyxel.com/about_zyxel/zyxel_worldwide.shtml
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.
Corporate Headquarters (Worldwide)
Taiwan
• Zyxel Communications Corporation
• http://www.zyxel.com
Asia
China
• Zyxel Communications (Shanghai) Corp.
Zyxel Communications (Beijing) Corp.
Zyxel Communications (Tianjin) Corp.
• https://www.zyxel.com/cn/zh/
India
• Zyxel Technology India Pvt Ltd
• https://www.zyxel.com/in/en/
Kazakhstan
• Zyxel Kazakhstan
• https://www.zyxel.kz
A
Customer Support
and also
ES1100 Series User's Guide
19
P P E N D I X
for the latest information.
A