Not an Outlook Fax question - suggest you post to a group that supports your Windows Server version.

CD posted the simillar question as you have.

Outlook has not such capability nor plugin software available
as of today.

But you can find the software working with "Outlook address book"
such as "MY TALK FAX Pro 8" published in Japan, with which you can
send FAX via the FAX server PC to which you install the software as
FAX server from the FAX client PC connected to HOME network
to which you install the software as FAX client.
If you like, you can even send Outlook message as FAX printing
it to the FAX printer which is installed with the software though
the Outlook message will not be saved into "Sent box" in Outlook
but saved into "outbox"  in "MY TALK FAX Pro 8" itself.

Here is the my whole message to CD for your reference ;
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Hello,

Though your question is not directly related with Outlook,
generally speaking, there IS some software working as FAX
server and client which fits your request working with Outlook.

As I am in Japan, they use the software "MY Talk FAX Pro 8"
by Intercom Corp's, which has the capability operating as FAX
server and client and you can install it to one PC as FAX server
while to another PCs as FAX client.
The FAX server PC shall be connected to the analog telephone
line via the Voice/FAX modem.
From another PC connected to HOME network, you can send and
receive Faxes via the FAX server PC .

Some software you can find in your country may have the similar
capability, I hope.

Duke

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