Netopia R2121 User Reference Manual page 93

If an incoming call is not required to match a connection profile, and fails to do so, it is accepted as a standard
IP connection. Accepted, unmatched calls adopt the call parameter values set in the Default Answer Profile.
To determine the call parameter values that unmatched calls will adopt, customize the Default Answer Profile
parameters in the Default Answer Profile screen.
Customizing the default profile
You can customize the Netopia Router's default profile in the Default Answer Profile screen.
1. Select Default Answer Profile in the WAN Configuration screen. Press Return. The Default Profile screen
appears.
Calling Number Authentication...
Must Match a Defined Profile:
PPP Authentication...
Bandwidth Allocation...
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.
Default Answer Profile
Managing Voice and Data Calls 9-5
Preferred
Yes
PAP
BAP