Netopia R2020 manual Pap

Models: R2020

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Managing Data Calls 8-5

1.Select Default Answer Profile in the WAN Configuration screen. Press Return. The Default Profile screen appears.

Default Answer Profile

Calling Number Authentication... Preferred

Must Match a Defined Profile:

Yes

PPP Authentication...

PAP

Configure values which may be used when receiving a call in this screen.

2.To enable CNA-authentication, select Calling Number Authentication in the Default Answer Profile screen and choose one of the following settings:

Ignored: Calling Number Authentication (CNA) is not in effect.

Preferred: This is the default setting. Authentication is attempted if the calling number is available. If authentication fails, or the calling number is not available, the call proceeds as usual and the caller may still connect successfully. Use this setting if you expect to receive both regular and CNA-authenticated calls.

Required: Authentication is attempted if the calling number is available. If authentication fails, or the calling number is not available, the Netopia Router disconnects the caller. Use this setting if you require all calls to be CNA-authenticated.

Calling Number Authentication (CNA), is an application of CallerID. It is a method of verifying that an incoming call is originating from an expected site. Using CNA, you can increase the security of your network by requiring that callers not only possess the correct PPP authentication information, but also are calling from a particular physical location.

CNA works by checking the calling number that the Netopia Router receives during the initial setup phase of an incoming call against a set of stored numbers. Each number in the stored set is defined in a specific connection profile. When a match occurs, the incoming call is handled by the connection profile containing the matched number.

Using CNA can also provide cost savings because calls are not billed during the CNA phase. With CNA, a caller can set up a connection to the Netopia Router without incurring any charges by accessing a dial-back connection profile. If the caller’s rates are higher than those charged to the Netopia Router’s return call, then using CNA has saved the difference.

Page 81
Image 81
Netopia R2020 manual Pap