The Fax Service Provider API includes the following functions and callback functions.
| Function |
Description |
| FAX_LINECALLBACK |
Delivers TAPI events to the fax service provider. |
| FAX_SEND_CALLBACK |
Notifies the fax service that an outbound fax call is in progress. |
| FaxDevAbortOperation |
Requests that the fax service provider terminate the active send or receive fax operation. |
| FaxDevEndJob |
Closes the active fax job gracefully. |
| FaxDevInitialize |
Initializes the communication between the fax service and the fax service provider DLL. |
| FaxDevReceive |
Signals a fax service provider DLL that there is an incoming fax transmission. |
| FaxDevReportStatus |
Queries a fax service provider DLL for status information about an individual active fax operation. |
| FaxDevSend |
Signals a fax service provider DLL that it must initiate an outgoing fax transmission. |
| FaxDevStartJob |
Indicates the beginning of a fax job or operation, and provides an opportunity for the fax service provider to perform call setup. |
| FaxDevVirtualDeviceCreation |
Enumerates virtual fax devices for the fax service. |