First, is it Hardware or Software(The Brooktrout card and the Brooktrout driver are considered hardware. OmniRush is the Software component.)
Check that:
Brooktrout Driver is installed: Check the Windows Device Manager: If the PnP driver is in use, the Brooktrout board should be listed and should not have a question mark on it.
Try going to a command prompt and running faxinit manually. The steps are:
Open a command prompt
Switch to the <windir>\bfax\ directory (e.g. c:\windows\bfax\)
type: faxinit -n <enter>
You should see something like this (for a 4-port TR114 board)
fax0 224 TR114+
fax1 228 TR114+
fax2 22c TR114+
fax3 230 TR114+
Total channels: 4 TR114; 0 TruFax; 0 TR112/TR111MC; 0 TR200
No BRI TR114s found.
If the faxinit runs properly, then we assume that the driver and board are functioning.
ISA: Set the card to a different IRQ/Port and reinstall the driver to the new settings
PCI:
Check the Windows Device Manager: Is the Brooktrout board listed properly? If not, reinstall the driver.
Try putting the card in a different slot
If the problem persists, see the troubleshooting document
If ports do not detect, even though they are listed in faxinit.cfg, a hardware conflict is likely. See the troubleshooting document.
(This would be visible in the module log in Administrator.)
If ports do detect, but cannot be initialized by the fax module, even though they are listed in faxinit.cfg, a hardware conflict is likely. See the troubleshooting document.