ZyXEL Communications 128MH user manual More on CLID, Note on CLID and Modems

Prestige 128MH PSTN Router/Hub

Table 4-3.	Edit Dial-in User Menu Fields (continued)
Field	Description	Option
Rem CLID	If you have enabled the CLID Authen field in Menu 13, then you need to
	specify the telephone number from which this Remote Dial-in User calls. Your
	Prestige will check this number against the CLID in the incoming call. If they
	do not match and the CLID Authen is Required, then your Prestige will reject
	the call.
Idle Time-	Enter the idle time (in seconds). This time-out determines how long the dial-in	Default=300
out	user can be idle before your Prestige disconnects the call.	seconds
	Idle time is defined as the period of time where there is no data traffic between
	the dial-in user and your Prestige. The default is 300 seconds (5 minutes).

Once you have completed filling in Menu 14.1 - Edit Dial-in User, press [Enter] at the message [Press ENTER to Confirm … ] to save your selections, or press [Esc] at any time to cancel your selections.

4.5More on CLID

CLID allows your Prestige to authenticate the caller before a call is answered, thus saving the cost of a connection. Your Prestige uses the caller ID in call setup message to match against the CLID in the database.

Note on CLID and Modems

For your Prestige to use the CLID authentication, it is necessary that your modem also support caller CLID.

Besides authentication, another application of CLID is to combine it with callback. For instance, your company pays for the connection charges for telecommuting employees and you use your Prestige as the dial in server. You can turn on both the CLID authentication and call back options for the dial-in users. By doing so, all usage are charged to the company instead of the employees, and your accounting department can avoid the hassles of accountability and reimbursement.

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