Appendix A Customer Support - ZyXEL Communications XGS4600 Series 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
XGS4600 Series User's Guide
609
P P E N D I X
for the latest information.
A