Справочное Руководство для Netopia 430 s

Profile screen and choose one of the following settings:

Ignored: Calling Number Authentication (CNA) is not in effect. This 
is the default setting.

Preferred: Authentications 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 ISDN Router disconnects the caller. Use this 
setting if you require all calls to be CNA-authenticated.

Default Answer Profile

                                          +-----------+

         Calling Number Authentication... | Ignored   |

                                          | Preferred |

                                          | Required  |

         Must Match a Defined Profile:    +-----------+

         Data Compression...                Ascend LZS

         B-Channel Usage...                 Dynamic

         Idle Timeout:                      300

         IP Enabled:                        Yes

         IP Parameters...

         IPX Enabled:                       Yes

         IPX Parameters...

This setting requires that the calling number match a profile to 
answer.