ZyXEL Communications 480 manual Clid Authentication, Configuring the Prestige for Callback

Prestige 480 Dual BRI ISDN Router

Note: The caller always controls Idle Timeout, so the Idle Timeout field does not apply when there is

callback.

8.4.2 CLID Authentication

CLID (Calling Line IDentification) authentication affords you the security of limiting a user to only initiate connections from a fixed location. The Prestige uses the caller ID sent by the switch to match against the CLIDs in the database. Please note that for CLID authentication to work on the Prestige, your telephone company must support caller ID.

8.4.3 Callback

Callback serves two purposes. One is security. When set to callback to a fixed number, an intruder will not gain access to your network even if he/she stole the password from your user, because the Prestige always calls back to the pre -configured number.

The other is ease of accounting. For instance, your company pays for the connection charges for telecommuting employees and you use your Prestige as the dial in server. When you turn on the callback option for the dial-in users, all usage is charged to the company instead of the employees, and your accounting department can avoid the hassles of accountability and reimbursement.

Configuring the Prestige for Callback

In this scenario, LAN 1 first calls LAN 2, then LAN 2 calls back to LAN 1. These are the respective SMT menus.

LAN 1

8-12 Dial-In Server Configuration