...with Voice-over IP calling, there are advanced call-filtering options available from some carriers. These features use caller ID information to allow you make a choice about how calls from a particular number are handled. You can:

* Forward the call/FAX to a particular number
* Send the call directly to voicemail
* Give the caller a busy signal
* Play a "not-in-service" message
* Send the caller to a funny rejection hotline

But I believe you should be able to do that with your current "standard" FAX machine..if you set it up right.

Hope this helps.