Error 0x80040044

Value: -2147221436 | 0x80040044 | 2147745860

What does it mean ?

TAPI_E_TIMEOUT  
The call failed due to a timeout.
Value: 68 | 0x0044 | 0b0000000001000100

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

Other Errors for FACILITY_ITF