facsBridge T37FSP is a Windows fax driver that bridges the gap between Internet Fax Gateway and Windows Fax Service. With T37FSP you can enjoy intuitive and easy to use Windows desktop faxing. The product is oriented for corporate users and individuals using Internet Fax Service Providers or T.37 fax devices (e.g. cisco fax-enabled routers). The Fax Service Provider (FSP) is a Windows fax driver that implements predefined interface in order to plug-in third party fax devices into Windows Fax Service domain. The facsBridge T37FSP is a Windows Fax Service Provider, capable of sending faxes via email (store-and-forward facsimile with off-ramp gateway). It follows the T.37 protocol (as described in ITU-T Recommendation T.37 and ITU-T Recommendation F.185), except that the Windows Fax Service generates class F TIFF files (MMR compression), and the T.37 specifications require profile S TIFF files (subset of TIFF-F), but most commercial T.37 fax machines (Internet-aware fax machines) can handle TIFF-F. See Troubleshooting for more details on how to convert TIFF file from MMR format.