Anyone know how to use the T-Mobile MDA device as a fax modem?

[VegasDice]

I have recently changed my traditional landline to VoIP.
Unfortunately, my VoIP service is horrible at sending faxes. My fax
machine is a Brother 7820 MFC.

Does anyone know of a way for me to connect my T-Mobile MDA device to
the Brother Multi-Function fax machine and route my faxes through the
MDA (T-Mobile telephone network OR GPRS internet) connection?

Any help would be appreciated.

Thanks.