Ok - I have faxing working wth TB 2.4 but how do I set up multiple incoming fax "machines"

After trolling for a while, I found enough pieces to get incoming faxing working, although it only works when I send the fax to the IVR (from-pstn) and does not work when I use a DID (from-zaptel). I am using Digium TDM cards.

Here's what I need to do... identify a few zaptel channels that become incoming fax numbers, and have each one send its received fax via email to a specific email address, possibly to more than one email. This will allow greater security on confidential matters, rather than keeping the incoming faxes for all to see...

Do I need to setup specific extensions that only terminate fax calls? Is there a wiki or a step-by-step that helps with this? Sorry if the answers are out there, but I can't find them.

So far TB 2.4 has been "very good to me" - aside from some digium-related issues, pretty smooth sailling. Thanks in advance...Dale