Draytek 5500 Series manual Isdn, Certificate Backup, Basic Concept

3.12.3 Certificate Backup

Local certificate and Trusted CA certificate for this router can be saved within one file. Please click Backup on the following screen to save them. If you want to set encryption password for these certificates, please type characters in both fields of Encrypt password and Retype password.

Also, you can use Restore to retrieve these two settings to the router whenever you want.

3.13ISDN

3.13.1Basic Concept

ISDN means integrated services digital network that is an international communications standard for sending voice, video, and data over digital telephone lines or normal telephone wires.

Below shows the menu items for ISDN.

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