Cantata, the company that now makes Brooktrout fax boards, is hosting a webinar discussing fax over IP.  Anyone wishing to check it out can register online.

For those of you unfamiliar with VOIP and FOIP, it's actually more complicated than you might think.  Compressing and uncompressing a QAM data stream can result in minute changes to the audio that can cause the fax transmission to fail, but there are VOIP-specific transmission methods like T.38 and T.37.  I presume this webinar will explain those options and tell you that there are a number of Brooktrout boards that are up to the task.