Managing Data Calls
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
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
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
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