18.4. Restricting Access by Caller ID
If your phone line has caller ID enabled and your modem supports it, mgetty can be configured to block certain callers based on their phone numbers. By default, any caller will be allowed to connect—but you can change this so that only a few numbers are allowed by following these steps:
1. | On the main page of the module, click on the Caller ID Access icon. This will take you to a form listing restricted numbers, which will probably be empty if you have not added any yet. |
2. | Click on the Add a new caller ID number link, which will take you to a form for entering the new number. |
3. | Set the Phone number option to Numbers starting with, and in the field next to it enter a partial or complete phone number that ... |
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